Home / 115,233,612.40-172,850,418.60-72,235,442.80

Finding the Fourth Proportional to 115,233,612.40, 172,850,418.60 and 72,235,442.80

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Solution

The fourth proportional to 115,233,612.40, 172,850,418.60 and 72,235,442.80 is: 108,353,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,233,612.40 : 172,850,418.60 = 72,235,442.80 : x
  2. Step 2: Convert to fraction form
    115,233,612.40/172,850,418.60 = 72,235,442.80/x
  3. Step 3: Cross multiply
    115,233,612.40x = 172,850,418.60 × 72,235,442.80
  4. Step 4: Simplify right side
    115,233,612.40x = 12,485,926,525,736,356
  5. Step 5: Solve for x
    x = 12,485,926,525,736,356/115,233,612.40
  6. Step 6: Final answer
    x = 108,353,164.20

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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.