Home / 109,187,904.80-163,781,857.20-100,873,805.60

Finding the Fourth Proportional to 109,187,904.80, 163,781,857.20 and 100,873,805.60

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Solution

The fourth proportional to 109,187,904.80, 163,781,857.20 and 100,873,805.60 is: 151,310,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,187,904.80 : 163,781,857.20 = 100,873,805.60 : x
  2. Step 2: Convert to fraction form
    109,187,904.80/163,781,857.20 = 100,873,805.60/x
  3. Step 3: Cross multiply
    109,187,904.80x = 163,781,857.20 × 100,873,805.60
  4. Step 4: Simplify right side
    109,187,904.80x = 16,521,299,223,999,758
  5. Step 5: Solve for x
    x = 16,521,299,223,999,758/109,187,904.80
  6. Step 6: Final answer
    x = 151,310,708.40

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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.