Home / 66,816,007.80-100,373,310.90-64,277,921.40

Finding the Fourth Proportional to 66,816,007.80, 100,373,310.90 and 64,277,921.40

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Solution

The fourth proportional to 66,816,007.80, 100,373,310.90 and 64,277,921.40 is: 96,560,509.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,816,007.80 : 100,373,310.90 = 64,277,921.40 : x
  2. Step 2: Convert to fraction form
    66,816,007.80/100,373,310.90 = 64,277,921.40/x
  3. Step 3: Cross multiply
    66,816,007.80x = 100,373,310.90 × 64,277,921.40
  4. Step 4: Simplify right side
    66,816,007.80x = 6,451,787,788,687,963
  5. Step 5: Solve for x
    x = 6,451,787,788,687,963/66,816,007.80
  6. Step 6: Final answer
    x = 96,560,509.99

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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.