Home / 1,316,304,280.80-1,974,456,421.20-442,615,276.80

Finding the Fourth Proportional to 1,316,304,280.80, 1,974,456,421.20 and 442,615,276.80

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Solution

The fourth proportional to 1,316,304,280.80, 1,974,456,421.20 and 442,615,276.80 is: 663,922,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,304,280.80 : 1,974,456,421.20 = 442,615,276.80 : x
  2. Step 2: Convert to fraction form
    1,316,304,280.80/1,974,456,421.20 = 442,615,276.80/x
  3. Step 3: Cross multiply
    1,316,304,280.80x = 1,974,456,421.20 × 442,615,276.80
  4. Step 4: Simplify right side
    1,316,304,280.80x = 873,924,575,398,975,488
  5. Step 5: Solve for x
    x = 873,924,575,398,975,488/1,316,304,280.80
  6. Step 6: Final answer
    x = 663,922,915.20

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Half scale
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Double scale
Find fourth proportional to 1,316,304,281.80, 1,974,456,422.70 and 442,615,277.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.