Home / 2,119,811,435.20-2,925,614,362.80-1,215,920,019.52

Finding the Fourth Proportional to 2,119,811,435.20, 2,925,614,362.80 and 1,215,920,019.52

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Solution

The fourth proportional to 2,119,811,435.20, 2,925,614,362.80 and 1,215,920,019.52 is: 1,678,127,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,811,435.20 : 2,925,614,362.80 = 1,215,920,019.52 : x
  2. Step 2: Convert to fraction form
    2,119,811,435.20/2,925,614,362.80 = 1,215,920,019.52/x
  3. Step 3: Cross multiply
    2,119,811,435.20x = 2,925,614,362.80 × 1,215,920,019.52
  4. Step 4: Simplify right side
    2,119,811,435.20x = 3,557,313,073,123,768,320
  5. Step 5: Solve for x
    x = 3,557,313,073,123,768,320/2,119,811,435.20
  6. Step 6: Final answer
    x = 1,678,127,126.81

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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.