Home / 78,392,176.96-108,187,263.96-47,031,406.15

Finding the Fourth Proportional to 78,392,176.96, 108,187,263.96 and 47,031,406.15

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Solution

The fourth proportional to 78,392,176.96, 108,187,263.96 and 47,031,406.15 is: 64,906,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,176.96 : 108,187,263.96 = 47,031,406.15 : x
  2. Step 2: Convert to fraction form
    78,392,176.96/108,187,263.96 = 47,031,406.15/x
  3. Step 3: Cross multiply
    78,392,176.96x = 108,187,263.96 × 47,031,406.15
  4. Step 4: Simplify right side
    78,392,176.96x = 5,088,199,151,019,081
  5. Step 5: Solve for x
    x = 5,088,199,151,019,081/78,392,176.96
  6. Step 6: Final answer
    x = 64,906,976.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.