Home / 15,402,321.92-21,254,361.02-8,431,651.26

Finding the Fourth Proportional to 15,402,321.92, 21,254,361.02 and 8,431,651.26

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Solution

The fourth proportional to 15,402,321.92, 21,254,361.02 and 8,431,651.26 is: 11,635,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,321.92 : 21,254,361.02 = 8,431,651.26 : x
  2. Step 2: Convert to fraction form
    15,402,321.92/21,254,361.02 = 8,431,651.26/x
  3. Step 3: Cross multiply
    15,402,321.92x = 21,254,361.02 × 8,431,651.26
  4. Step 4: Simplify right side
    15,402,321.92x = 179,209,359,864,238.31
  5. Step 5: Solve for x
    x = 179,209,359,864,238.31/15,402,321.92
  6. Step 6: Final answer
    x = 11,635,217.13

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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.