Home / 90,016,842.72-124,223,130.72-48,763,905.60

Finding the Fourth Proportional to 90,016,842.72, 124,223,130.72 and 48,763,905.60

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Solution

The fourth proportional to 90,016,842.72, 124,223,130.72 and 48,763,905.60 is: 67,294,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,016,842.72 : 124,223,130.72 = 48,763,905.60 : x
  2. Step 2: Convert to fraction form
    90,016,842.72/124,223,130.72 = 48,763,905.60/x
  3. Step 3: Cross multiply
    90,016,842.72x = 124,223,130.72 × 48,763,905.60
  4. Step 4: Simplify right side
    90,016,842.72x = 6,057,605,019,766,540
  5. Step 5: Solve for x
    x = 6,057,605,019,766,540/90,016,842.72
  6. Step 6: Final answer
    x = 67,294,128.93

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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.