Home / 20,787,659.04-31,190,604-9,865,737.12

Finding the Fourth Proportional to 20,787,659.04, 31,190,604 and 9,865,737.12

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Solution

The fourth proportional to 20,787,659.04, 31,190,604 and 9,865,737.12 is: 14,802,931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,787,659.04 : 31,190,604 = 9,865,737.12 : x
  2. Step 2: Convert to fraction form
    20,787,659.04/31,190,604 = 9,865,737.12/x
  3. Step 3: Cross multiply
    20,787,659.04x = 31,190,604 × 9,865,737.12
  4. Step 4: Simplify right side
    20,787,659.04x = 307,718,299,678,020.44
  5. Step 5: Solve for x
    x = 307,718,299,678,020.44/20,787,659.04
  6. Step 6: Final answer
    x = 14,802,931.83

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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.