Home / 78,392,196-108,187,290.18-47,031,425.20

Finding the Fourth Proportional to 78,392,196, 108,187,290.18 and 47,031,425.20

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Solution

The fourth proportional to 78,392,196, 108,187,290.18 and 47,031,425.20 is: 64,907,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,196 : 108,187,290.18 = 47,031,425.20 : x
  2. Step 2: Convert to fraction form
    78,392,196/108,187,290.18 = 47,031,425.20/x
  3. Step 3: Cross multiply
    78,392,196x = 108,187,290.18 × 47,031,425.20
  4. Step 4: Simplify right side
    78,392,196x = 5,088,202,445,691,365
  5. Step 5: Solve for x
    x = 5,088,202,445,691,365/78,392,196
  6. Step 6: Final answer
    x = 64,907,002.30

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1.5x scale

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.