Home / 82,181,254.06-123,280,038.60-30,379,432.60

Finding the Fourth Proportional to 82,181,254.06, 123,280,038.60 and 30,379,432.60

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Solution

The fourth proportional to 82,181,254.06, 123,280,038.60 and 30,379,432.60 is: 45,572,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,181,254.06 : 123,280,038.60 = 30,379,432.60 : x
  2. Step 2: Convert to fraction form
    82,181,254.06/123,280,038.60 = 30,379,432.60/x
  3. Step 3: Cross multiply
    82,181,254.06x = 123,280,038.60 × 30,379,432.60
  4. Step 4: Simplify right side
    82,181,254.06x = 3,745,177,623,574,098.50
  5. Step 5: Solve for x
    x = 3,745,177,623,574,098.50/82,181,254.06
  6. Step 6: Final answer
    x = 45,572,164.44

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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.