Home / 70,121,373.80-105,193,363.04-21,599,180.36

Finding the Fourth Proportional to 70,121,373.80, 105,193,363.04 and 21,599,180.36

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Solution

The fourth proportional to 70,121,373.80, 105,193,363.04 and 21,599,180.36 is: 32,402,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121,373.80 : 105,193,363.04 = 21,599,180.36 : x
  2. Step 2: Convert to fraction form
    70,121,373.80/105,193,363.04 = 21,599,180.36/x
  3. Step 3: Cross multiply
    70,121,373.80x = 105,193,363.04 × 21,599,180.36
  4. Step 4: Simplify right side
    70,121,373.80x = 2,272,090,420,975,918
  5. Step 5: Solve for x
    x = 2,272,090,420,975,918/70,121,373.80
  6. Step 6: Final answer
    x = 32,402,251.95

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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.