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Finding the Fourth Proportional to 72,882,482.60, 100,042,454.50 and 64,437,552.95

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Solution

The fourth proportional to 72,882,482.60, 100,042,454.50 and 64,437,552.95 is: 88,450,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,882,482.60 : 100,042,454.50 = 64,437,552.95 : x
  2. Step 2: Convert to fraction form
    72,882,482.60/100,042,454.50 = 64,437,552.95/x
  3. Step 3: Cross multiply
    72,882,482.60x = 100,042,454.50 × 64,437,552.95
  4. Step 4: Simplify right side
    72,882,482.60x = 6,446,490,959,261,748
  5. Step 5: Solve for x
    x = 6,446,490,959,261,748/72,882,482.60
  6. Step 6: Final answer
    x = 88,450,485.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.