Home / 384,218,350.72-575,398,390-219,957,909.28

Finding the Fourth Proportional to 384,218,350.72, 575,398,390 and 219,957,909.28

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Solution

The fourth proportional to 384,218,350.72, 575,398,390 and 219,957,909.28 is: 329,404,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,218,350.72 : 575,398,390 = 219,957,909.28 : x
  2. Step 2: Convert to fraction form
    384,218,350.72/575,398,390 = 219,957,909.28/x
  3. Step 3: Cross multiply
    384,218,350.72x = 575,398,390 × 219,957,909.28
  4. Step 4: Simplify right side
    384,218,350.72x = 126,563,426,867,478,064
  5. Step 5: Solve for x
    x = 126,563,426,867,478,064/384,218,350.72
  6. Step 6: Final answer
    x = 329,404,950.68

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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.