Home / 109,209,632.20-163,814,448.30-91,990,943.80

Finding the Fourth Proportional to 109,209,632.20, 163,814,448.30 and 91,990,943.80

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Solution

The fourth proportional to 109,209,632.20, 163,814,448.30 and 91,990,943.80 is: 137,986,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,209,632.20 : 163,814,448.30 = 91,990,943.80 : x
  2. Step 2: Convert to fraction form
    109,209,632.20/163,814,448.30 = 91,990,943.80/x
  3. Step 3: Cross multiply
    109,209,632.20x = 163,814,448.30 × 91,990,943.80
  4. Step 4: Simplify right side
    109,209,632.20x = 15,069,445,707,193,306
  5. Step 5: Solve for x
    x = 15,069,445,707,193,306/109,209,632.20
  6. Step 6: Final answer
    x = 137,986,415.70

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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.