Home / 21,689,197.30-29,931,397.65-11,899,463.59

Finding the Fourth Proportional to 21,689,197.30, 29,931,397.65 and 11,899,463.59

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Solution

The fourth proportional to 21,689,197.30, 29,931,397.65 and 11,899,463.59 is: 16,421,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689,197.30 : 29,931,397.65 = 11,899,463.59 : x
  2. Step 2: Convert to fraction form
    21,689,197.30/29,931,397.65 = 11,899,463.59/x
  3. Step 3: Cross multiply
    21,689,197.30x = 29,931,397.65 × 11,899,463.59
  4. Step 4: Simplify right side
    21,689,197.30x = 356,167,576,533,986.56
  5. Step 5: Solve for x
    x = 356,167,576,533,986.56/21,689,197.30
  6. Step 6: Final answer
    x = 16,421,427.29

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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.