Home / 21,145,145.40-31,692,834.90-11,042,566.20

Finding the Fourth Proportional to 21,145,145.40, 31,692,834.90 and 11,042,566.20

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Solution

The fourth proportional to 21,145,145.40, 31,692,834.90 and 11,042,566.20 is: 16,550,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145,145.40 : 31,692,834.90 = 11,042,566.20 : x
  2. Step 2: Convert to fraction form
    21,145,145.40/31,692,834.90 = 11,042,566.20/x
  3. Step 3: Cross multiply
    21,145,145.40x = 31,692,834.90 × 11,042,566.20
  4. Step 4: Simplify right side
    21,145,145.40x = 349,970,227,448,920.31
  5. Step 5: Solve for x
    x = 349,970,227,448,920.31/21,145,145.40
  6. Step 6: Final answer
    x = 16,550,854.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.