Home / 72,254,566.57-99,712,019.85-39,215,109.24

Finding the Fourth Proportional to 72,254,566.57, 99,712,019.85 and 39,215,109.24

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Solution

The fourth proportional to 72,254,566.57, 99,712,019.85 and 39,215,109.24 is: 54,117,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,254,566.57 : 99,712,019.85 = 39,215,109.24 : x
  2. Step 2: Convert to fraction form
    72,254,566.57/99,712,019.85 = 39,215,109.24/x
  3. Step 3: Cross multiply
    72,254,566.57x = 99,712,019.85 × 39,215,109.24
  4. Step 4: Simplify right side
    72,254,566.57x = 3,910,217,750,958,798.50
  5. Step 5: Solve for x
    x = 3,910,217,750,958,798.50/72,254,566.57
  6. Step 6: Final answer
    x = 54,117,240.43

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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.