Home / 763,092,008.20-1,144,721,993.10-278,522,792.20

Finding the Fourth Proportional to 763,092,008.20, 1,144,721,993.10 and 278,522,792.20

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Solution

The fourth proportional to 763,092,008.20, 1,144,721,993.10 and 278,522,792.20 is: 417,814,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,092,008.20 : 1,144,721,993.10 = 278,522,792.20 : x
  2. Step 2: Convert to fraction form
    763,092,008.20/1,144,721,993.10 = 278,522,792.20/x
  3. Step 3: Cross multiply
    763,092,008.20x = 1,144,721,993.10 × 278,522,792.20
  4. Step 4: Simplify right side
    763,092,008.20x = 318,831,165,810,961,088
  5. Step 5: Solve for x
    x = 318,831,165,810,961,088/763,092,008.20
  6. Step 6: Final answer
    x = 417,814,840.65

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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.