Home / 72,691,108.80-109,036,663.20-48,504,638.40

Finding the Fourth Proportional to 72,691,108.80, 109,036,663.20 and 48,504,638.40

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Solution

The fourth proportional to 72,691,108.80, 109,036,663.20 and 48,504,638.40 is: 72,756,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,691,108.80 : 109,036,663.20 = 48,504,638.40 : x
  2. Step 2: Convert to fraction form
    72,691,108.80/109,036,663.20 = 48,504,638.40/x
  3. Step 3: Cross multiply
    72,691,108.80x = 109,036,663.20 × 48,504,638.40
  4. Step 4: Simplify right side
    72,691,108.80x = 5,288,783,920,858,587
  5. Step 5: Solve for x
    x = 5,288,783,920,858,587/72,691,108.80
  6. Step 6: Final answer
    x = 72,756,957.60

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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.