Home / 21,162,206.16-29,206,545.96-12,461,188.40

Finding the Fourth Proportional to 21,162,206.16, 29,206,545.96 and 12,461,188.40

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Solution

The fourth proportional to 21,162,206.16, 29,206,545.96 and 12,461,188.40 is: 17,198,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162,206.16 : 29,206,545.96 = 12,461,188.40 : x
  2. Step 2: Convert to fraction form
    21,162,206.16/29,206,545.96 = 12,461,188.40/x
  3. Step 3: Cross multiply
    21,162,206.16x = 29,206,545.96 × 12,461,188.40
  4. Step 4: Simplify right side
    21,162,206.16x = 363,948,271,720,818.88
  5. Step 5: Solve for x
    x = 363,948,271,720,818.88/21,162,206.16
  6. Step 6: Final answer
    x = 17,198,030.72

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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.