Home / 15,261,317.85-21,060,613.80-8,386,242.78

Finding the Fourth Proportional to 15,261,317.85, 21,060,613.80 and 8,386,242.78

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Solution

The fourth proportional to 15,261,317.85, 21,060,613.80 and 8,386,242.78 is: 11,573,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261,317.85 : 21,060,613.80 = 8,386,242.78 : x
  2. Step 2: Convert to fraction form
    15,261,317.85/21,060,613.80 = 8,386,242.78/x
  3. Step 3: Cross multiply
    15,261,317.85x = 21,060,613.80 × 8,386,242.78
  4. Step 4: Simplify right side
    15,261,317.85x = 176,619,420,359,539.22
  5. Step 5: Solve for x
    x = 176,619,420,359,539.22/15,261,317.85
  6. Step 6: Final answer
    x = 11,573,012.38

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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.