Home / 144,990,467.20-217,485,700.80-139,416,630.40

Finding the Fourth Proportional to 144,990,467.20, 217,485,700.80 and 139,416,630.40

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Solution

The fourth proportional to 144,990,467.20, 217,485,700.80 and 139,416,630.40 is: 209,124,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,990,467.20 : 217,485,700.80 = 139,416,630.40 : x
  2. Step 2: Convert to fraction form
    144,990,467.20/217,485,700.80 = 139,416,630.40/x
  3. Step 3: Cross multiply
    144,990,467.20x = 217,485,700.80 × 139,416,630.40
  4. Step 4: Simplify right side
    144,990,467.20x = 30,321,123,565,718,588
  5. Step 5: Solve for x
    x = 30,321,123,565,718,588/144,990,467.20
  6. Step 6: Final answer
    x = 209,124,945.60

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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.