Home / 280,899,173.92-387,641,429.04-157,141,917.76

Finding the Fourth Proportional to 280,899,173.92, 387,641,429.04 and 157,141,917.76

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Solution

The fourth proportional to 280,899,173.92, 387,641,429.04 and 157,141,917.76 is: 216,856,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,899,173.92 : 387,641,429.04 = 157,141,917.76 : x
  2. Step 2: Convert to fraction form
    280,899,173.92/387,641,429.04 = 157,141,917.76/x
  3. Step 3: Cross multiply
    280,899,173.92x = 387,641,429.04 × 157,141,917.76
  4. Step 4: Simplify right side
    280,899,173.92x = 60,914,717,562,572,552
  5. Step 5: Solve for x
    x = 60,914,717,562,572,552/280,899,173.92
  6. Step 6: Final answer
    x = 216,856,164.84

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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.