Home / 465,394,115.32-642,248,308.38-256,557,748.12

Finding the Fourth Proportional to 465,394,115.32, 642,248,308.38 and 256,557,748.12

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Solution

The fourth proportional to 465,394,115.32, 642,248,308.38 and 256,557,748.12 is: 354,052,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,394,115.32 : 642,248,308.38 = 256,557,748.12 : x
  2. Step 2: Convert to fraction form
    465,394,115.32/642,248,308.38 = 256,557,748.12/x
  3. Step 3: Cross multiply
    465,394,115.32x = 642,248,308.38 × 256,557,748.12
  4. Step 4: Simplify right side
    465,394,115.32x = 164,773,779,731,852,128
  5. Step 5: Solve for x
    x = 164,773,779,731,852,128/465,394,115.32
  6. Step 6: Final answer
    x = 354,052,134.11

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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.