Home / 15,579,998.29-21,500,000.80-8,704,531.81

Finding the Fourth Proportional to 15,579,998.29, 21,500,000.80 and 8,704,531.81

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Solution

The fourth proportional to 15,579,998.29, 21,500,000.80 and 8,704,531.81 is: 12,012,032.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579,998.29 : 21,500,000.80 = 8,704,531.81 : x
  2. Step 2: Convert to fraction form
    15,579,998.29/21,500,000.80 = 8,704,531.81/x
  3. Step 3: Cross multiply
    15,579,998.29x = 21,500,000.80 × 8,704,531.81
  4. Step 4: Simplify right side
    15,579,998.29x = 187,147,440,878,625.47
  5. Step 5: Solve for x
    x = 187,147,440,878,625.47/15,579,998.29
  6. Step 6: Final answer
    x = 12,012,032.18

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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.