Home / 15,786,531.20-21,785,412.93-8,543,187.20

Finding the Fourth Proportional to 15,786,531.20, 21,785,412.93 and 8,543,187.20

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Solution

The fourth proportional to 15,786,531.20, 21,785,412.93 and 8,543,187.20 is: 11,789,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786,531.20 : 21,785,412.93 = 8,543,187.20 : x
  2. Step 2: Convert to fraction form
    15,786,531.20/21,785,412.93 = 8,543,187.20/x
  3. Step 3: Cross multiply
    15,786,531.20x = 21,785,412.93 × 8,543,187.20
  4. Step 4: Simplify right side
    15,786,531.20x = 186,116,860,890,290.47
  5. Step 5: Solve for x
    x = 186,116,860,890,290.47/15,786,531.20
  6. Step 6: Final answer
    x = 11,789,598.27

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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.