Home / 96,765,321.60-145,147,982.40-72,578,851.20

Finding the Fourth Proportional to 96,765,321.60, 145,147,982.40 and 72,578,851.20

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Solution

The fourth proportional to 96,765,321.60, 145,147,982.40 and 72,578,851.20 is: 108,868,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,765,321.60 : 145,147,982.40 = 72,578,851.20 : x
  2. Step 2: Convert to fraction form
    96,765,321.60/145,147,982.40 = 72,578,851.20/x
  3. Step 3: Cross multiply
    96,765,321.60x = 145,147,982.40 × 72,578,851.20
  4. Step 4: Simplify right side
    96,765,321.60x = 10,534,673,816,589,820
  5. Step 5: Solve for x
    x = 10,534,673,816,589,820/96,765,321.60
  6. Step 6: Final answer
    x = 108,868,276.80

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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.