Home / 100,711,598.86-151,067,376.42-72,013,784.86

Finding the Fourth Proportional to 100,711,598.86, 151,067,376.42 and 72,013,784.86

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Solution

The fourth proportional to 100,711,598.86, 151,067,376.42 and 72,013,784.86 is: 108,020,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,711,598.86 : 151,067,376.42 = 72,013,784.86 : x
  2. Step 2: Convert to fraction form
    100,711,598.86/151,067,376.42 = 72,013,784.86/x
  3. Step 3: Cross multiply
    100,711,598.86x = 151,067,376.42 × 72,013,784.86
  4. Step 4: Simplify right side
    100,711,598.86x = 10,878,933,544,874,516
  5. Step 5: Solve for x
    x = 10,878,933,544,874,516/100,711,598.86
  6. Step 6: Final answer
    x = 108,020,661.65

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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.