Home / 420,439,149.32-580,121,877.30-234,771,597.32

Finding the Fourth Proportional to 420,439,149.32, 580,121,877.30 and 234,771,597.32

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Solution

The fourth proportional to 420,439,149.32, 580,121,877.30 and 234,771,597.32 is: 323,937,815.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,439,149.32 : 580,121,877.30 = 234,771,597.32 : x
  2. Step 2: Convert to fraction form
    420,439,149.32/580,121,877.30 = 234,771,597.32/x
  3. Step 3: Cross multiply
    420,439,149.32x = 580,121,877.30 × 234,771,597.32
  4. Step 4: Simplify right side
    420,439,149.32x = 136,196,139,773,998,032
  5. Step 5: Solve for x
    x = 136,196,139,773,998,032/420,439,149.32
  6. Step 6: Final answer
    x = 323,937,815.96

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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.