Home / 1,416,778,122.62-1,955,780,742.51-915,231,449.18

Finding the Fourth Proportional to 1,416,778,122.62, 1,955,780,742.51 and 915,231,449.18

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Solution

The fourth proportional to 1,416,778,122.62, 1,955,780,742.51 and 915,231,449.18 is: 1,263,424,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416,778,122.62 : 1,955,780,742.51 = 915,231,449.18 : x
  2. Step 2: Convert to fraction form
    1,416,778,122.62/1,955,780,742.51 = 915,231,449.18/x
  3. Step 3: Cross multiply
    1,416,778,122.62x = 1,955,780,742.51 × 915,231,449.18
  4. Step 4: Simplify right side
    1,416,778,122.62x = 1,789,992,043,235,984,640
  5. Step 5: Solve for x
    x = 1,789,992,043,235,984,640/1,416,778,122.62
  6. Step 6: Final answer
    x = 1,263,424,395.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.