Home / 431,137,327.80-646,705,991.70-158,472,665.40

Finding the Fourth Proportional to 431,137,327.80, 646,705,991.70 and 158,472,665.40

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Solution

The fourth proportional to 431,137,327.80, 646,705,991.70 and 158,472,665.40 is: 237,708,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,137,327.80 : 646,705,991.70 = 158,472,665.40 : x
  2. Step 2: Convert to fraction form
    431,137,327.80/646,705,991.70 = 158,472,665.40/x
  3. Step 3: Cross multiply
    431,137,327.80x = 646,705,991.70 × 158,472,665.40
  4. Step 4: Simplify right side
    431,137,327.80x = 102,485,222,234,849,296
  5. Step 5: Solve for x
    x = 102,485,222,234,849,296/431,137,327.80
  6. Step 6: Final answer
    x = 237,708,998.10

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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.