Home / 770,508,061.80-1,155,762,092.70-443,990,711.40

Finding the Fourth Proportional to 770,508,061.80, 1,155,762,092.70 and 443,990,711.40

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Solution

The fourth proportional to 770,508,061.80, 1,155,762,092.70 and 443,990,711.40 is: 665,986,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,508,061.80 : 1,155,762,092.70 = 443,990,711.40 : x
  2. Step 2: Convert to fraction form
    770,508,061.80/1,155,762,092.70 = 443,990,711.40/x
  3. Step 3: Cross multiply
    770,508,061.80x = 1,155,762,092.70 × 443,990,711.40
  4. Step 4: Simplify right side
    770,508,061.80x = 513,147,633,747,025,728
  5. Step 5: Solve for x
    x = 513,147,633,747,025,728/770,508,061.80
  6. Step 6: Final answer
    x = 665,986,067.10

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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.