Home / 67,979,638.08-101,989,355.04-21,920,580.78

Finding the Fourth Proportional to 67,979,638.08, 101,989,355.04 and 21,920,580.78

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Solution

The fourth proportional to 67,979,638.08, 101,989,355.04 and 21,920,580.78 is: 32,887,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,979,638.08 : 101,989,355.04 = 21,920,580.78 : x
  2. Step 2: Convert to fraction form
    67,979,638.08/101,989,355.04 = 21,920,580.78/x
  3. Step 3: Cross multiply
    67,979,638.08x = 101,989,355.04 × 21,920,580.78
  4. Step 4: Simplify right side
    67,979,638.08x = 2,235,665,895,854,420.50
  5. Step 5: Solve for x
    x = 2,235,665,895,854,420.50/67,979,638.08
  6. Step 6: Final answer
    x = 32,887,287.41

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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.