Home / 65,809,318.40-98,713,977.60-38,869,107.20

Finding the Fourth Proportional to 65,809,318.40, 98,713,977.60 and 38,869,107.20

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Solution

The fourth proportional to 65,809,318.40, 98,713,977.60 and 38,869,107.20 is: 58,303,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809,318.40 : 98,713,977.60 = 38,869,107.20 : x
  2. Step 2: Convert to fraction form
    65,809,318.40/98,713,977.60 = 38,869,107.20/x
  3. Step 3: Cross multiply
    65,809,318.40x = 98,713,977.60 × 38,869,107.20
  4. Step 4: Simplify right side
    65,809,318.40x = 3,836,924,177,472,799
  5. Step 5: Solve for x
    x = 3,836,924,177,472,799/65,809,318.40
  6. Step 6: Final answer
    x = 58,303,660.80

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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.