Home / 907,983,821.40-1,361,975,732.10-688,445,544.30

Finding the Fourth Proportional to 907,983,821.40, 1,361,975,732.10 and 688,445,544.30

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Solution

The fourth proportional to 907,983,821.40, 1,361,975,732.10 and 688,445,544.30 is: 1,032,668,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,983,821.40 : 1,361,975,732.10 = 688,445,544.30 : x
  2. Step 2: Convert to fraction form
    907,983,821.40/1,361,975,732.10 = 688,445,544.30/x
  3. Step 3: Cross multiply
    907,983,821.40x = 1,361,975,732.10 × 688,445,544.30
  4. Step 4: Simplify right side
    907,983,821.40x = 937,646,124,208,975,360
  5. Step 5: Solve for x
    x = 937,646,124,208,975,360/907,983,821.40
  6. Step 6: Final answer
    x = 1,032,668,316.45

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Double scale
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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.