Home / 1,472,201,731.72-2,031,605,690.78-812,151,834.76

Finding the Fourth Proportional to 1,472,201,731.72, 2,031,605,690.78 and 812,151,834.76

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Solution

The fourth proportional to 1,472,201,731.72, 2,031,605,690.78 and 812,151,834.76 is: 1,120,751,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,201,731.72 : 2,031,605,690.78 = 812,151,834.76 : x
  2. Step 2: Convert to fraction form
    1,472,201,731.72/2,031,605,690.78 = 812,151,834.76/x
  3. Step 3: Cross multiply
    1,472,201,731.72x = 2,031,605,690.78 × 812,151,834.76
  4. Step 4: Simplify right side
    1,472,201,731.72x = 1,649,972,289,275,834,112
  5. Step 5: Solve for x
    x = 1,649,972,289,275,834,112/1,472,201,731.72
  6. Step 6: Final answer
    x = 1,120,751,493.31

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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.