Home / 161,755,480.80-242,633,221.20-80,965,951.20

Finding the Fourth Proportional to 161,755,480.80, 242,633,221.20 and 80,965,951.20

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Solution

The fourth proportional to 161,755,480.80, 242,633,221.20 and 80,965,951.20 is: 121,448,926.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,755,480.80 : 242,633,221.20 = 80,965,951.20 : x
  2. Step 2: Convert to fraction form
    161,755,480.80/242,633,221.20 = 80,965,951.20/x
  3. Step 3: Cross multiply
    161,755,480.80x = 242,633,221.20 × 80,965,951.20
  4. Step 4: Simplify right side
    161,755,480.80x = 19,645,029,547,178,004
  5. Step 5: Solve for x
    x = 19,645,029,547,178,004/161,755,480.80
  6. Step 6: Final answer
    x = 121,448,926.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.