Home / 21,257,146.02-31,866,731.08-8,300,282.30

Finding the Fourth Proportional to 21,257,146.02, 31,866,731.08 and 8,300,282.30

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Solution

The fourth proportional to 21,257,146.02, 31,866,731.08 and 8,300,282.30 is: 12,443,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,146.02 : 31,866,731.08 = 8,300,282.30 : x
  2. Step 2: Convert to fraction form
    21,257,146.02/31,866,731.08 = 8,300,282.30/x
  3. Step 3: Cross multiply
    21,257,146.02x = 31,866,731.08 × 8,300,282.30
  4. Step 4: Simplify right side
    21,257,146.02x = 264,502,863,841,766.38
  5. Step 5: Solve for x
    x = 264,502,863,841,766.38/21,257,146.02
  6. Step 6: Final answer
    x = 12,443,009.21

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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.