Home / 770,508,001.30-1,155,762,001.95-443,990,650.90

Finding the Fourth Proportional to 770,508,001.30, 1,155,762,001.95 and 443,990,650.90

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Solution

The fourth proportional to 770,508,001.30, 1,155,762,001.95 and 443,990,650.90 is: 665,985,976.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,508,001.30 : 1,155,762,001.95 = 443,990,650.90 : x
  2. Step 2: Convert to fraction form
    770,508,001.30/1,155,762,001.95 = 443,990,650.90/x
  3. Step 3: Cross multiply
    770,508,001.30x = 1,155,762,001.95 × 443,990,650.90
  4. Step 4: Simplify right side
    770,508,001.30x = 513,147,523,531,267,584
  5. Step 5: Solve for x
    x = 513,147,523,531,267,584/770,508,001.30
  6. Step 6: Final answer
    x = 665,985,976.35

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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.