Home / 850,664,139.40-1,275,996,209.10-486,859,313.80

Finding the Fourth Proportional to 850,664,139.40, 1,275,996,209.10 and 486,859,313.80

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Solution

The fourth proportional to 850,664,139.40, 1,275,996,209.10 and 486,859,313.80 is: 730,288,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,664,139.40 : 1,275,996,209.10 = 486,859,313.80 : x
  2. Step 2: Convert to fraction form
    850,664,139.40/1,275,996,209.10 = 486,859,313.80/x
  3. Step 3: Cross multiply
    850,664,139.40x = 1,275,996,209.10 × 486,859,313.80
  4. Step 4: Simplify right side
    850,664,139.40x = 621,230,638,773,827,328
  5. Step 5: Solve for x
    x = 621,230,638,773,827,328/850,664,139.40
  6. Step 6: Final answer
    x = 730,288,970.70

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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.