Home / 809,859,370.60-1,117,600,366.89-438,572,905.48

Finding the Fourth Proportional to 809,859,370.60, 1,117,600,366.89 and 438,572,905.48

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Solution

The fourth proportional to 809,859,370.60, 1,117,600,366.89 and 438,572,905.48 is: 605,227,596.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,859,370.60 : 1,117,600,366.89 = 438,572,905.48 : x
  2. Step 2: Convert to fraction form
    809,859,370.60/1,117,600,366.89 = 438,572,905.48/x
  3. Step 3: Cross multiply
    809,859,370.60x = 1,117,600,366.89 × 438,572,905.48
  4. Step 4: Simplify right side
    809,859,370.60x = 490,149,240,072,461,376
  5. Step 5: Solve for x
    x = 490,149,240,072,461,376/809,859,370.60
  6. Step 6: Final answer
    x = 605,227,596.13

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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.