Home / 72,503,731.60-108,755,597.40-43,838,285.20

Finding the Fourth Proportional to 72,503,731.60, 108,755,597.40 and 43,838,285.20

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Solution

The fourth proportional to 72,503,731.60, 108,755,597.40 and 43,838,285.20 is: 65,757,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,503,731.60 : 108,755,597.40 = 43,838,285.20 : x
  2. Step 2: Convert to fraction form
    72,503,731.60/108,755,597.40 = 43,838,285.20/x
  3. Step 3: Cross multiply
    72,503,731.60x = 108,755,597.40 × 43,838,285.20
  4. Step 4: Simplify right side
    72,503,731.60x = 4,767,658,895,917,579
  5. Step 5: Solve for x
    x = 4,767,658,895,917,579/72,503,731.60
  6. Step 6: Final answer
    x = 65,757,427.80

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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.