Home / 72,505,867.86-100,060,738.02-39,464,520.12

Finding the Fourth Proportional to 72,505,867.86, 100,060,738.02 and 39,464,520.12

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Solution

The fourth proportional to 72,505,867.86, 100,060,738.02 and 39,464,520.12 is: 54,462,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,505,867.86 : 100,060,738.02 = 39,464,520.12 : x
  2. Step 2: Convert to fraction form
    72,505,867.86/100,060,738.02 = 39,464,520.12/x
  3. Step 3: Cross multiply
    72,505,867.86x = 100,060,738.02 × 39,464,520.12
  4. Step 4: Simplify right side
    72,505,867.86x = 3,948,849,008,812,338.50
  5. Step 5: Solve for x
    x = 3,948,849,008,812,338.50/72,505,867.86
  6. Step 6: Final answer
    x = 54,462,474.91

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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.