Home / 7,138,423.20-10,685,764.80-3,933,739.20

Finding the Fourth Proportional to 7,138,423.20, 10,685,764.80 and 3,933,739.20

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Solution

The fourth proportional to 7,138,423.20, 10,685,764.80 and 3,933,739.20 is: 5,888,557.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,423.20 : 10,685,764.80 = 3,933,739.20 : x
  2. Step 2: Convert to fraction form
    7,138,423.20/10,685,764.80 = 3,933,739.20/x
  3. Step 3: Cross multiply
    7,138,423.20x = 10,685,764.80 × 3,933,739.20
  4. Step 4: Simplify right side
    7,138,423.20x = 42,035,011,875,740.16
  5. Step 5: Solve for x
    x = 42,035,011,875,740.16/7,138,423.20
  6. Step 6: Final answer
    x = 5,888,557.00

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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.