Home / 129,615,182,626.13-178,865,068,900.20-71,745,934,479.69

Finding the Fourth Proportional to 129,615,182,626.13, 178,865,068,900.20 and 71,745,934,479.69

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Solution

The fourth proportional to 129,615,182,626.13, 178,865,068,900.20 and 71,745,934,479.69 is: 99,007,240,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,615,182,626.13 : 178,865,068,900.20 = 71,745,934,479.69 : x
  2. Step 2: Convert to fraction form
    129,615,182,626.13/178,865,068,900.20 = 71,745,934,479.69/x
  3. Step 3: Cross multiply
    129,615,182,626.13x = 178,865,068,900.20 × 71,745,934,479.69
  4. Step 4: Simplify right side
    129,615,182,626.13x = 12,832,841,514,019,522,084,864
  5. Step 5: Solve for x
    x = 12,832,841,514,019,522,084,864/129,615,182,626.13
  6. Step 6: Final answer
    x = 99,007,240,155.16

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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.