Home / 129,993,831.86-195,012,669.69-43,711,728.30

Finding the Fourth Proportional to 129,993,831.86, 195,012,669.69 and 43,711,728.30

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Solution

The fourth proportional to 129,993,831.86, 195,012,669.69 and 43,711,728.30 is: 65,574,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,993,831.86 : 195,012,669.69 = 43,711,728.30 : x
  2. Step 2: Convert to fraction form
    129,993,831.86/195,012,669.69 = 43,711,728.30/x
  3. Step 3: Cross multiply
    129,993,831.86x = 195,012,669.69 × 43,711,728.30
  4. Step 4: Simplify right side
    129,993,831.86x = 8,524,340,832,546,925
  5. Step 5: Solve for x
    x = 8,524,340,832,546,925/129,993,831.86
  6. Step 6: Final answer
    x = 65,574,963.91

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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.