Home / 129,057,212.39-178,096,710.69-70,320,360.15

Finding the Fourth Proportional to 129,057,212.39, 178,096,710.69 and 70,320,360.15

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Solution

The fourth proportional to 129,057,212.39, 178,096,710.69 and 70,320,360.15 is: 97,040,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,057,212.39 : 178,096,710.69 = 70,320,360.15 : x
  2. Step 2: Convert to fraction form
    129,057,212.39/178,096,710.69 = 70,320,360.15/x
  3. Step 3: Cross multiply
    129,057,212.39x = 178,096,710.69 × 70,320,360.15
  4. Step 4: Simplify right side
    129,057,212.39x = 12,523,824,837,251,156
  5. Step 5: Solve for x
    x = 12,523,824,837,251,156/129,057,212.39
  6. Step 6: Final answer
    x = 97,040,875.17

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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.