Home / 280,883,083.64-387,619,293.14-155,444,407.20

Finding the Fourth Proportional to 280,883,083.64, 387,619,293.14 and 155,444,407.20

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Solution

The fourth proportional to 280,883,083.64, 387,619,293.14 and 155,444,407.20 is: 214,513,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,883,083.64 : 387,619,293.14 = 155,444,407.20 : x
  2. Step 2: Convert to fraction form
    280,883,083.64/387,619,293.14 = 155,444,407.20/x
  3. Step 3: Cross multiply
    280,883,083.64x = 387,619,293.14 × 155,444,407.20
  4. Step 4: Simplify right side
    280,883,083.64x = 60,253,251,241,430,320
  5. Step 5: Solve for x
    x = 60,253,251,241,430,320/280,883,083.64
  6. Step 6: Final answer
    x = 214,513,634.86

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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.