Home / 21,663,814.42-29,899,125.30-13,406,534.83

Finding the Fourth Proportional to 21,663,814.42, 29,899,125.30 and 13,406,534.83

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Solution

The fourth proportional to 21,663,814.42, 29,899,125.30 and 13,406,534.83 is: 18,502,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663,814.42 : 29,899,125.30 = 13,406,534.83 : x
  2. Step 2: Convert to fraction form
    21,663,814.42/29,899,125.30 = 13,406,534.83/x
  3. Step 3: Cross multiply
    21,663,814.42x = 29,899,125.30 × 13,406,534.83
  4. Step 4: Simplify right side
    21,663,814.42x = 400,843,664,720,984.19
  5. Step 5: Solve for x
    x = 400,843,664,720,984.19/21,663,814.42
  6. Step 6: Final answer
    x = 18,502,912.60

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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.