Home / 8,187,254.40-12,280,881.60-5,158,040.70

Finding the Fourth Proportional to 8,187,254.40, 12,280,881.60 and 5,158,040.70

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Solution

The fourth proportional to 8,187,254.40, 12,280,881.60 and 5,158,040.70 is: 7,737,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187,254.40 : 12,280,881.60 = 5,158,040.70 : x
  2. Step 2: Convert to fraction form
    8,187,254.40/12,280,881.60 = 5,158,040.70/x
  3. Step 3: Cross multiply
    8,187,254.40x = 12,280,881.60 × 5,158,040.70
  4. Step 4: Simplify right side
    8,187,254.40x = 63,345,287,124,681.12
  5. Step 5: Solve for x
    x = 63,345,287,124,681.12/8,187,254.40
  6. Step 6: Final answer
    x = 7,737,061.05

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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.