Home / 1,679,630,015.40-2,519,445,023.10-515,278,213.80

Finding the Fourth Proportional to 1,679,630,015.40, 2,519,445,023.10 and 515,278,213.80

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Solution

The fourth proportional to 1,679,630,015.40, 2,519,445,023.10 and 515,278,213.80 is: 772,917,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,630,015.40 : 2,519,445,023.10 = 515,278,213.80 : x
  2. Step 2: Convert to fraction form
    1,679,630,015.40/2,519,445,023.10 = 515,278,213.80/x
  3. Step 3: Cross multiply
    1,679,630,015.40x = 2,519,445,023.10 × 515,278,213.80
  4. Step 4: Simplify right side
    1,679,630,015.40x = 1,298,215,131,270,267,648
  5. Step 5: Solve for x
    x = 1,298,215,131,270,267,648/1,679,630,015.40
  6. Step 6: Final answer
    x = 772,917,320.70

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Double scale
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Similar ratio
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1.5x scale

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.