Home / 78,857,498,763.12-108,860,873,188.80-52,830,679,279.20

Finding the Fourth Proportional to 78,857,498,763.12, 108,860,873,188.80 and 52,830,679,279.20

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Solution

The fourth proportional to 78,857,498,763.12, 108,860,873,188.80 and 52,830,679,279.20 is: 72,931,477,255.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857,498,763.12 : 108,860,873,188.80 = 52,830,679,279.20 : x
  2. Step 2: Convert to fraction form
    78,857,498,763.12/108,860,873,188.80 = 52,830,679,279.20/x
  3. Step 3: Cross multiply
    78,857,498,763.12x = 108,860,873,188.80 × 52,830,679,279.20
  4. Step 4: Simplify right side
    78,857,498,763.12x = 5,751,193,877,491,154,419,712
  5. Step 5: Solve for x
    x = 5,751,193,877,491,154,419,712/78,857,498,763.12
  6. Step 6: Final answer
    x = 72,931,477,255.79

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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.