Home / 680,074,615.78-1,020,073,552.78-301,377,782.70

Finding the Fourth Proportional to 680,074,615.78, 1,020,073,552.78 and 301,377,782.70

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Solution

The fourth proportional to 680,074,615.78, 1,020,073,552.78 and 301,377,782.70 is: 452,049,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,074,615.78 : 1,020,073,552.78 = 301,377,782.70 : x
  2. Step 2: Convert to fraction form
    680,074,615.78/1,020,073,552.78 = 301,377,782.70/x
  3. Step 3: Cross multiply
    680,074,615.78x = 1,020,073,552.78 × 301,377,782.70
  4. Step 4: Simplify right side
    680,074,615.78x = 307,427,505,527,747,776
  5. Step 5: Solve for x
    x = 307,427,505,527,747,776/680,074,615.78
  6. Step 6: Final answer
    x = 452,049,669.84

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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.