Home / 21,699,695.30-29,945,539.73-12,407,439.83

Finding the Fourth Proportional to 21,699,695.30, 29,945,539.73 and 12,407,439.83

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Solution

The fourth proportional to 21,699,695.30, 29,945,539.73 and 12,407,439.83 is: 17,122,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699,695.30 : 29,945,539.73 = 12,407,439.83 : x
  2. Step 2: Convert to fraction form
    21,699,695.30/29,945,539.73 = 12,407,439.83/x
  3. Step 3: Cross multiply
    21,699,695.30x = 29,945,539.73 × 12,407,439.83
  4. Step 4: Simplify right side
    21,699,695.30x = 371,547,482,165,084.56
  5. Step 5: Solve for x
    x = 371,547,482,165,084.56/21,699,695.30
  6. Step 6: Final answer
    x = 17,122,244.21

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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.