Home / 15,643,445.30-21,588,001.00-8,674,613.78

Finding the Fourth Proportional to 15,643,445.30, 21,588,001.00 and 8,674,613.78

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Solution

The fourth proportional to 15,643,445.30, 21,588,001.00 and 8,674,613.78 is: 11,970,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643,445.30 : 21,588,001.00 = 8,674,613.78 : x
  2. Step 2: Convert to fraction form
    15,643,445.30/21,588,001.00 = 8,674,613.78/x
  3. Step 3: Cross multiply
    15,643,445.30x = 21,588,001.00 × 8,674,613.78
  4. Step 4: Simplify right side
    15,643,445.30x = 187,267,570,989,537.25
  5. Step 5: Solve for x
    x = 187,267,570,989,537.25/15,643,445.30
  6. Step 6: Final answer
    x = 11,970,992.80

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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.