Home / 162,377,020.17-223,863,515.10-128,997,253.89

Finding the Fourth Proportional to 162,377,020.17, 223,863,515.10 and 128,997,253.89

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Solution

The fourth proportional to 162,377,020.17, 223,863,515.10 and 128,997,253.89 is: 177,843,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,377,020.17 : 223,863,515.10 = 128,997,253.89 : x
  2. Step 2: Convert to fraction form
    162,377,020.17/223,863,515.10 = 128,997,253.89/x
  3. Step 3: Cross multiply
    162,377,020.17x = 223,863,515.10 × 128,997,253.89
  4. Step 4: Simplify right side
    162,377,020.17x = 28,877,778,694,062,548
  5. Step 5: Solve for x
    x = 28,877,778,694,062,548/162,377,020.17
  6. Step 6: Final answer
    x = 177,843,999.50

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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.