Home / 2,791,181,082.80-3,851,855,368.44-1,538,162,896.88

Finding the Fourth Proportional to 2,791,181,082.80, 3,851,855,368.44 and 1,538,162,896.88

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Solution

The fourth proportional to 2,791,181,082.80, 3,851,855,368.44 and 1,538,162,896.88 is: 2,122,678,835.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791,181,082.80 : 3,851,855,368.44 = 1,538,162,896.88 : x
  2. Step 2: Convert to fraction form
    2,791,181,082.80/3,851,855,368.44 = 1,538,162,896.88/x
  3. Step 3: Cross multiply
    2,791,181,082.80x = 3,851,855,368.44 × 1,538,162,896.88
  4. Step 4: Simplify right side
    2,791,181,082.80x = 5,924,781,011,882,450,944
  5. Step 5: Solve for x
    x = 5,924,781,011,882,450,944/2,791,181,082.80
  6. Step 6: Final answer
    x = 2,122,678,835.99

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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.