Home / 20,733,136.70-31,099,705.06-9,218,581.70

Finding the Fourth Proportional to 20,733,136.70, 31,099,705.06 and 9,218,581.70

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Solution

The fourth proportional to 20,733,136.70, 31,099,705.06 and 9,218,581.70 is: 13,827,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,136.70 : 31,099,705.06 = 9,218,581.70 : x
  2. Step 2: Convert to fraction form
    20,733,136.70/31,099,705.06 = 9,218,581.70/x
  3. Step 3: Cross multiply
    20,733,136.70x = 31,099,705.06 × 9,218,581.70
  4. Step 4: Simplify right side
    20,733,136.70x = 286,695,171,941,513.38
  5. Step 5: Solve for x
    x = 286,695,171,941,513.38/20,733,136.70
  6. Step 6: Final answer
    x = 13,827,872.55

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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.