Home / 99,856,138.40-149,784,207.60-48,711,831.20

Finding the Fourth Proportional to 99,856,138.40, 149,784,207.60 and 48,711,831.20

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Solution

The fourth proportional to 99,856,138.40, 149,784,207.60 and 48,711,831.20 is: 73,067,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856,138.40 : 149,784,207.60 = 48,711,831.20 : x
  2. Step 2: Convert to fraction form
    99,856,138.40/149,784,207.60 = 48,711,831.20/x
  3. Step 3: Cross multiply
    99,856,138.40x = 149,784,207.60 × 48,711,831.20
  4. Step 4: Simplify right side
    99,856,138.40x = 7,296,263,037,036,957
  5. Step 5: Solve for x
    x = 7,296,263,037,036,957/99,856,138.40
  6. Step 6: Final answer
    x = 73,067,746.80

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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.