Home / 288,129,560.78-432,059,785.98-103,872,769.58

Finding the Fourth Proportional to 288,129,560.78, 432,059,785.98 and 103,872,769.58

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Solution

The fourth proportional to 288,129,560.78, 432,059,785.98 and 103,872,769.58 is: 155,760,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,129,560.78 : 432,059,785.98 = 103,872,769.58 : x
  2. Step 2: Convert to fraction form
    288,129,560.78/432,059,785.98 = 103,872,769.58/x
  3. Step 3: Cross multiply
    288,129,560.78x = 432,059,785.98 × 103,872,769.58
  4. Step 4: Simplify right side
    288,129,560.78x = 44,879,246,591,724,360
  5. Step 5: Solve for x
    x = 44,879,246,591,724,360/288,129,560.78
  6. Step 6: Final answer
    x = 155,760,646.26

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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.