Home / 485,315,087.60-727,972,631.40-460,443,648.80

Finding the Fourth Proportional to 485,315,087.60, 727,972,631.40 and 460,443,648.80

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Solution

The fourth proportional to 485,315,087.60, 727,972,631.40 and 460,443,648.80 is: 690,665,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,315,087.60 : 727,972,631.40 = 460,443,648.80 : x
  2. Step 2: Convert to fraction form
    485,315,087.60/727,972,631.40 = 460,443,648.80/x
  3. Step 3: Cross multiply
    485,315,087.60x = 727,972,631.40 × 460,443,648.80
  4. Step 4: Simplify right side
    485,315,087.60x = 335,190,374,628,353,472
  5. Step 5: Solve for x
    x = 335,190,374,628,353,472/485,315,087.60
  6. Step 6: Final answer
    x = 690,665,473.20

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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.