Home / 770,508,032.80-1,155,762,049.20-443,990,682.40

Finding the Fourth Proportional to 770,508,032.80, 1,155,762,049.20 and 443,990,682.40

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Solution

The fourth proportional to 770,508,032.80, 1,155,762,049.20 and 443,990,682.40 is: 665,986,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,508,032.80 : 1,155,762,049.20 = 443,990,682.40 : x
  2. Step 2: Convert to fraction form
    770,508,032.80/1,155,762,049.20 = 443,990,682.40/x
  3. Step 3: Cross multiply
    770,508,032.80x = 1,155,762,049.20 × 443,990,682.40
  4. Step 4: Simplify right side
    770,508,032.80x = 513,147,580,916,330,368
  5. Step 5: Solve for x
    x = 513,147,580,916,330,368/770,508,032.80
  6. Step 6: Final answer
    x = 665,986,023.60

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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.