Home / 840,499,820.97-1,261,241,019.12-607,100,381.61

Finding the Fourth Proportional to 840,499,820.97, 1,261,241,019.12 and 607,100,381.61

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Solution

The fourth proportional to 840,499,820.97, 1,261,241,019.12 and 607,100,381.61 is: 911,005,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,499,820.97 : 1,261,241,019.12 = 607,100,381.61 : x
  2. Step 2: Convert to fraction form
    840,499,820.97/1,261,241,019.12 = 607,100,381.61/x
  3. Step 3: Cross multiply
    840,499,820.97x = 1,261,241,019.12 × 607,100,381.61
  4. Step 4: Simplify right side
    840,499,820.97x = 765,699,904,009,937,280
  5. Step 5: Solve for x
    x = 765,699,904,009,937,280/840,499,820.97
  6. Step 6: Final answer
    x = 911,005,433.80

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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.