Home / 78,392,164.40-108,187,246.60-47,031,393.59

Finding the Fourth Proportional to 78,392,164.40, 108,187,246.60 and 47,031,393.59

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Solution

The fourth proportional to 78,392,164.40, 108,187,246.60 and 47,031,393.59 is: 64,906,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,164.40 : 108,187,246.60 = 47,031,393.59 : x
  2. Step 2: Convert to fraction form
    78,392,164.40/108,187,246.60 = 47,031,393.59/x
  3. Step 3: Cross multiply
    78,392,164.40x = 108,187,246.60 × 47,031,393.59
  4. Step 4: Simplify right side
    78,392,164.40x = 5,088,196,975,722,053
  5. Step 5: Solve for x
    x = 5,088,196,975,722,053/78,392,164.40
  6. Step 6: Final answer
    x = 64,906,958.69

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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.