Home / 72,418,114.90-99,924,883-42,654,689.04

Finding the Fourth Proportional to 72,418,114.90, 99,924,883 and 42,654,689.04

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Solution

The fourth proportional to 72,418,114.90, 99,924,883 and 42,654,689.04 is: 58,856,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,418,114.90 : 99,924,883 = 42,654,689.04 : x
  2. Step 2: Convert to fraction form
    72,418,114.90/99,924,883 = 42,654,689.04/x
  3. Step 3: Cross multiply
    72,418,114.90x = 99,924,883 × 42,654,689.04
  4. Step 4: Simplify right side
    72,418,114.90x = 4,262,264,811,723,382
  5. Step 5: Solve for x
    x = 4,262,264,811,723,382/72,418,114.90
  6. Step 6: Final answer
    x = 58,856,334.74

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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.