Home / 311,072,487.49-429,293,074.17-178,913,520.91

Finding the Fourth Proportional to 311,072,487.49, 429,293,074.17 and 178,913,520.91

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Solution

The fourth proportional to 311,072,487.49, 429,293,074.17 and 178,913,520.91 is: 246,908,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,072,487.49 : 429,293,074.17 = 178,913,520.91 : x
  2. Step 2: Convert to fraction form
    311,072,487.49/429,293,074.17 = 178,913,520.91/x
  3. Step 3: Cross multiply
    311,072,487.49x = 429,293,074.17 × 178,913,520.91
  4. Step 4: Simplify right side
    311,072,487.49x = 76,806,335,402,032,480
  5. Step 5: Solve for x
    x = 76,806,335,402,032,480/311,072,487.49
  6. Step 6: Final answer
    x = 246,908,159.64

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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.