Home / 21,330,613.30-29,427,870.50-12,388,201.14

Finding the Fourth Proportional to 21,330,613.30, 29,427,870.50 and 12,388,201.14

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Solution

The fourth proportional to 21,330,613.30, 29,427,870.50 and 12,388,201.14 is: 17,090,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330,613.30 : 29,427,870.50 = 12,388,201.14 : x
  2. Step 2: Convert to fraction form
    21,330,613.30/29,427,870.50 = 12,388,201.14/x
  3. Step 3: Cross multiply
    21,330,613.30x = 29,427,870.50 × 12,388,201.14
  4. Step 4: Simplify right side
    21,330,613.30x = 364,558,378,875,872.38
  5. Step 5: Solve for x
    x = 364,558,378,875,872.38/21,330,613.30
  6. Step 6: Final answer
    x = 17,090,853.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.