Home / 280,883,203.20-387,619,458.12-155,444,526.72

Finding the Fourth Proportional to 280,883,203.20, 387,619,458.12 and 155,444,526.72

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Solution

The fourth proportional to 280,883,203.20, 387,619,458.12 and 155,444,526.72 is: 214,513,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,883,203.20 : 387,619,458.12 = 155,444,526.72 : x
  2. Step 2: Convert to fraction form
    280,883,203.20/387,619,458.12 = 155,444,526.72/x
  3. Step 3: Cross multiply
    280,883,203.20x = 387,619,458.12 × 155,444,526.72
  4. Step 4: Simplify right side
    280,883,203.20x = 60,253,323,214,926,264
  5. Step 5: Solve for x
    x = 60,253,323,214,926,264/280,883,203.20
  6. Step 6: Final answer
    x = 214,513,799.79

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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.