Home / 72,765,234.40-109,147,851.60-65,590,780.90

Finding the Fourth Proportional to 72,765,234.40, 109,147,851.60 and 65,590,780.90

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Solution

The fourth proportional to 72,765,234.40, 109,147,851.60 and 65,590,780.90 is: 98,386,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765,234.40 : 109,147,851.60 = 65,590,780.90 : x
  2. Step 2: Convert to fraction form
    72,765,234.40/109,147,851.60 = 65,590,780.90/x
  3. Step 3: Cross multiply
    72,765,234.40x = 109,147,851.60 × 65,590,780.90
  4. Step 4: Simplify right side
    72,765,234.40x = 7,159,092,820,001,314
  5. Step 5: Solve for x
    x = 7,159,092,820,001,314/72,765,234.40
  6. Step 6: Final answer
    x = 98,386,171.35

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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.