Home / 315,045,120.76-434,750,869.96-173,913,309.92

Finding the Fourth Proportional to 315,045,120.76, 434,750,869.96 and 173,913,309.92

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Solution

The fourth proportional to 315,045,120.76, 434,750,869.96 and 173,913,309.92 is: 239,994,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,045,120.76 : 434,750,869.96 = 173,913,309.92 : x
  2. Step 2: Convert to fraction form
    315,045,120.76/434,750,869.96 = 173,913,309.92/x
  3. Step 3: Cross multiply
    315,045,120.76x = 434,750,869.96 × 173,913,309.92
  4. Step 4: Simplify right side
    315,045,120.76x = 75,608,962,785,995,200
  5. Step 5: Solve for x
    x = 75,608,962,785,995,200/315,045,120.76
  6. Step 6: Final answer
    x = 239,994,076.42

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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.