Home / 72,503,762.10-108,755,643.15-43,838,315.70

Finding the Fourth Proportional to 72,503,762.10, 108,755,643.15 and 43,838,315.70

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Solution

The fourth proportional to 72,503,762.10, 108,755,643.15 and 43,838,315.70 is: 65,757,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,503,762.10 : 108,755,643.15 = 43,838,315.70 : x
  2. Step 2: Convert to fraction form
    72,503,762.10/108,755,643.15 = 43,838,315.70/x
  3. Step 3: Cross multiply
    72,503,762.10x = 108,755,643.15 × 43,838,315.70
  4. Step 4: Simplify right side
    72,503,762.10x = 4,767,664,218,566,243
  5. Step 5: Solve for x
    x = 4,767,664,218,566,243/72,503,762.10
  6. Step 6: Final answer
    x = 65,757,473.55

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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.