Home / 56,793,257.30-78,374,715.99-30,687,775.04

Finding the Fourth Proportional to 56,793,257.30, 78,374,715.99 and 30,687,775.04

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Solution

The fourth proportional to 56,793,257.30, 78,374,715.99 and 30,687,775.04 is: 42,349,140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,793,257.30 : 78,374,715.99 = 30,687,775.04 : x
  2. Step 2: Convert to fraction form
    56,793,257.30/78,374,715.99 = 30,687,775.04/x
  3. Step 3: Cross multiply
    56,793,257.30x = 78,374,715.99 × 30,687,775.04
  4. Step 4: Simplify right side
    56,793,257.30x = 2,405,145,653,125,010.50
  5. Step 5: Solve for x
    x = 2,405,145,653,125,010.50/56,793,257.30
  6. Step 6: Final answer
    x = 42,349,140.86

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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.