Home / 71,833,423.80-107,750,135.70-43,111,990.20

Finding the Fourth Proportional to 71,833,423.80, 107,750,135.70 and 43,111,990.20

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Solution

The fourth proportional to 71,833,423.80, 107,750,135.70 and 43,111,990.20 is: 64,667,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,833,423.80 : 107,750,135.70 = 43,111,990.20 : x
  2. Step 2: Convert to fraction form
    71,833,423.80/107,750,135.70 = 43,111,990.20/x
  3. Step 3: Cross multiply
    71,833,423.80x = 107,750,135.70 × 43,111,990.20
  4. Step 4: Simplify right side
    71,833,423.80x = 4,645,322,794,347,071
  5. Step 5: Solve for x
    x = 4,645,322,794,347,071/71,833,423.80
  6. Step 6: Final answer
    x = 64,667,985.30

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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.