Home / 12,817,989.02-17,687,702.38-7,235,927.89

Finding the Fourth Proportional to 12,817,989.02, 17,687,702.38 and 7,235,927.89

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Solution

The fourth proportional to 12,817,989.02, 17,687,702.38 and 7,235,927.89 is: 9,984,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817,989.02 : 17,687,702.38 = 7,235,927.89 : x
  2. Step 2: Convert to fraction form
    12,817,989.02/17,687,702.38 = 7,235,927.89/x
  3. Step 3: Cross multiply
    12,817,989.02x = 17,687,702.38 × 7,235,927.89
  4. Step 4: Simplify right side
    12,817,989.02x = 127,986,939,003,315.72
  5. Step 5: Solve for x
    x = 127,986,939,003,315.72/12,817,989.02
  6. Step 6: Final answer
    x = 9,984,946.85

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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.