Home / 809,859,074.60-1,117,599,958.95-438,572,609.48

Finding the Fourth Proportional to 809,859,074.60, 1,117,599,958.95 and 438,572,609.48

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Solution

The fourth proportional to 809,859,074.60, 1,117,599,958.95 and 438,572,609.48 is: 605,227,187.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859,074.60 : 1,117,599,958.95 = 438,572,609.48 : x
  2. Step 2: Convert to fraction form
    809,859,074.60/1,117,599,958.95 = 438,572,609.48/x
  3. Step 3: Cross multiply
    809,859,074.60x = 1,117,599,958.95 × 438,572,609.48
  4. Step 4: Simplify right side
    809,859,074.60x = 490,148,730,351,442,432
  5. Step 5: Solve for x
    x = 490,148,730,351,442,432/809,859,074.60
  6. Step 6: Final answer
    x = 605,227,187.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.