Home / 53,172,831.20-79,759,246.80-45,520,080.80

Finding the Fourth Proportional to 53,172,831.20, 79,759,246.80 and 45,520,080.80

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Solution

The fourth proportional to 53,172,831.20, 79,759,246.80 and 45,520,080.80 is: 68,280,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,172,831.20 : 79,759,246.80 = 45,520,080.80 : x
  2. Step 2: Convert to fraction form
    53,172,831.20/79,759,246.80 = 45,520,080.80/x
  3. Step 3: Cross multiply
    53,172,831.20x = 79,759,246.80 × 45,520,080.80
  4. Step 4: Simplify right side
    53,172,831.20x = 3,630,647,358,883,141
  5. Step 5: Solve for x
    x = 3,630,647,358,883,141/53,172,831.20
  6. Step 6: Final answer
    x = 68,280,121.20

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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.