Home / 20,829,221.08-31,117,156.90-13,482,832.93

Finding the Fourth Proportional to 20,829,221.08, 31,117,156.90 and 13,482,832.93

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Solution

The fourth proportional to 20,829,221.08, 31,117,156.90 and 13,482,832.93 is: 20,142,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,221.08 : 31,117,156.90 = 13,482,832.93 : x
  2. Step 2: Convert to fraction form
    20,829,221.08/31,117,156.90 = 13,482,832.93/x
  3. Step 3: Cross multiply
    20,829,221.08x = 31,117,156.90 × 13,482,832.93
  4. Step 4: Simplify right side
    20,829,221.08x = 419,547,427,627,796.75
  5. Step 5: Solve for x
    x = 419,547,427,627,796.75/20,829,221.08
  6. Step 6: Final answer
    x = 20,142,252.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.