Home / 850,664,139.90-1,275,996,209.85-486,859,314.30

Finding the Fourth Proportional to 850,664,139.90, 1,275,996,209.85 and 486,859,314.30

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Solution

The fourth proportional to 850,664,139.90, 1,275,996,209.85 and 486,859,314.30 is: 730,288,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,664,139.90 : 1,275,996,209.85 = 486,859,314.30 : x
  2. Step 2: Convert to fraction form
    850,664,139.90/1,275,996,209.85 = 486,859,314.30/x
  3. Step 3: Cross multiply
    850,664,139.90x = 1,275,996,209.85 × 486,859,314.30
  4. Step 4: Simplify right side
    850,664,139.90x = 621,230,639,776,969,856
  5. Step 5: Solve for x
    x = 621,230,639,776,969,856/850,664,139.90
  6. Step 6: Final answer
    x = 730,288,971.45

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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.