Home / 1,259,808,681.40-1,889,713,022.10-999,615,167.80

Finding the Fourth Proportional to 1,259,808,681.40, 1,889,713,022.10 and 999,615,167.80

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Solution

The fourth proportional to 1,259,808,681.40, 1,889,713,022.10 and 999,615,167.80 is: 1,499,422,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,808,681.40 : 1,889,713,022.10 = 999,615,167.80 : x
  2. Step 2: Convert to fraction form
    1,259,808,681.40/1,889,713,022.10 = 999,615,167.80/x
  3. Step 3: Cross multiply
    1,259,808,681.40x = 1,889,713,022.10 × 999,615,167.80
  4. Step 4: Simplify right side
    1,259,808,681.40x = 1,888,985,799,680,336,384
  5. Step 5: Solve for x
    x = 1,888,985,799,680,336,384/1,259,808,681.40
  6. Step 6: Final answer
    x = 1,499,422,751.70

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Double scale
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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.