Home / 21,257,146.71-31,866,732.11-8,300,282.99

Finding the Fourth Proportional to 21,257,146.71, 31,866,732.11 and 8,300,282.99

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Solution

The fourth proportional to 21,257,146.71, 31,866,732.11 and 8,300,282.99 is: 12,443,010.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,146.71 : 31,866,732.11 = 8,300,282.99 : x
  2. Step 2: Convert to fraction form
    21,257,146.71/31,866,732.11 = 8,300,282.99/x
  3. Step 3: Cross multiply
    21,257,146.71x = 31,866,732.11 × 8,300,282.99
  4. Step 4: Simplify right side
    21,257,146.71x = 264,502,894,340,936.88
  5. Step 5: Solve for x
    x = 264,502,894,340,936.88/21,257,146.71
  6. Step 6: Final answer
    x = 12,443,010.25

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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.