Home / 129,615,182,625.75-178,865,068,899.69-71,745,934,479.33

Finding the Fourth Proportional to 129,615,182,625.75, 178,865,068,899.69 and 71,745,934,479.33

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Solution

The fourth proportional to 129,615,182,625.75, 178,865,068,899.69 and 71,745,934,479.33 is: 99,007,240,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,615,182,625.75 : 178,865,068,899.69 = 71,745,934,479.33 : x
  2. Step 2: Convert to fraction form
    129,615,182,625.75/178,865,068,899.69 = 71,745,934,479.33/x
  3. Step 3: Cross multiply
    129,615,182,625.75x = 178,865,068,899.69 × 71,745,934,479.33
  4. Step 4: Simplify right side
    129,615,182,625.75x = 12,832,841,513,918,005,248,000
  5. Step 5: Solve for x
    x = 12,832,841,513,918,005,248,000/129,615,182,625.75
  6. Step 6: Final answer
    x = 99,007,240,154.66

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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.