Home / 20,005,291.72-30,007,937.94-4,859,121.16

Finding the Fourth Proportional to 20,005,291.72, 30,007,937.94 and 4,859,121.16

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Solution

The fourth proportional to 20,005,291.72, 30,007,937.94 and 4,859,121.16 is: 7,288,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005,291.72 : 30,007,937.94 = 4,859,121.16 : x
  2. Step 2: Convert to fraction form
    20,005,291.72/30,007,937.94 = 4,859,121.16/x
  3. Step 3: Cross multiply
    20,005,291.72x = 30,007,937.94 × 4,859,121.16
  4. Step 4: Simplify right side
    20,005,291.72x = 145,812,206,212,220.81
  5. Step 5: Solve for x
    x = 145,812,206,212,220.81/20,005,291.72
  6. Step 6: Final answer
    x = 7,288,681.83

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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.