Home / 81,874,794.95-122,850,543.75-40,353,036.13

Finding the Fourth Proportional to 81,874,794.95, 122,850,543.75 and 40,353,036.13

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Solution

The fourth proportional to 81,874,794.95, 122,850,543.75 and 40,353,036.13 is: 60,548,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,874,794.95 : 122,850,543.75 = 40,353,036.13 : x
  2. Step 2: Convert to fraction form
    81,874,794.95/122,850,543.75 = 40,353,036.13/x
  3. Step 3: Cross multiply
    81,874,794.95x = 122,850,543.75 × 40,353,036.13
  4. Step 4: Simplify right side
    81,874,794.95x = 4,957,392,430,533,896
  5. Step 5: Solve for x
    x = 4,957,392,430,533,896/81,874,794.95
  6. Step 6: Final answer
    x = 60,548,456.13

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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.