Home / 770,508,040.80-1,155,762,061.20-443,990,690.40

Finding the Fourth Proportional to 770,508,040.80, 1,155,762,061.20 and 443,990,690.40

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Solution

The fourth proportional to 770,508,040.80, 1,155,762,061.20 and 443,990,690.40 is: 665,986,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,508,040.80 : 1,155,762,061.20 = 443,990,690.40 : x
  2. Step 2: Convert to fraction form
    770,508,040.80/1,155,762,061.20 = 443,990,690.40/x
  3. Step 3: Cross multiply
    770,508,040.80x = 1,155,762,061.20 × 443,990,690.40
  4. Step 4: Simplify right side
    770,508,040.80x = 513,147,595,490,315,072
  5. Step 5: Solve for x
    x = 513,147,595,490,315,072/770,508,040.80
  6. Step 6: Final answer
    x = 665,986,035.60

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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.