Home / 850,340,002.60-1,275,510,003.90-644,755,004.20

Finding the Fourth Proportional to 850,340,002.60, 1,275,510,003.90 and 644,755,004.20

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Solution

The fourth proportional to 850,340,002.60, 1,275,510,003.90 and 644,755,004.20 is: 967,132,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,340,002.60 : 1,275,510,003.90 = 644,755,004.20 : x
  2. Step 2: Convert to fraction form
    850,340,002.60/1,275,510,003.90 = 644,755,004.20/x
  3. Step 3: Cross multiply
    850,340,002.60x = 1,275,510,003.90 × 644,755,004.20
  4. Step 4: Simplify right side
    850,340,002.60x = 822,391,457,921,686,656
  5. Step 5: Solve for x
    x = 822,391,457,921,686,656/850,340,002.60
  6. Step 6: Final answer
    x = 967,132,506.30

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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.