Home / 2,587,308,911.40-3,880,963,367.10-747,121,621.80

Finding the Fourth Proportional to 2,587,308,911.40, 3,880,963,367.10 and 747,121,621.80

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Solution

The fourth proportional to 2,587,308,911.40, 3,880,963,367.10 and 747,121,621.80 is: 1,120,682,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587,308,911.40 : 3,880,963,367.10 = 747,121,621.80 : x
  2. Step 2: Convert to fraction form
    2,587,308,911.40/3,880,963,367.10 = 747,121,621.80/x
  3. Step 3: Cross multiply
    2,587,308,911.40x = 3,880,963,367.10 × 747,121,621.80
  4. Step 4: Simplify right side
    2,587,308,911.40x = 2,899,551,644,974,140,416
  5. Step 5: Solve for x
    x = 2,899,551,644,974,140,416/2,587,308,911.40
  6. Step 6: Final answer
    x = 1,120,682,432.70

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Double scale
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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.