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Finding the Fourth Proportional to 279,791,804.70, 419,687,707.05 and 98,015,363.10

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Solution

The fourth proportional to 279,791,804.70, 419,687,707.05 and 98,015,363.10 is: 147,023,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,791,804.70 : 419,687,707.05 = 98,015,363.10 : x
  2. Step 2: Convert to fraction form
    279,791,804.70/419,687,707.05 = 98,015,363.10/x
  3. Step 3: Cross multiply
    279,791,804.70x = 419,687,707.05 × 98,015,363.10
  4. Step 4: Simplify right side
    279,791,804.70x = 41,135,842,995,112,176
  5. Step 5: Solve for x
    x = 41,135,842,995,112,176/279,791,804.70
  6. Step 6: Final answer
    x = 147,023,044.65

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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.