Home / 312,477,989.28-468,742,542.65-156,951,826.80

Finding the Fourth Proportional to 312,477,989.28, 468,742,542.65 and 156,951,826.80

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Solution

The fourth proportional to 312,477,989.28, 468,742,542.65 and 156,951,826.80 is: 235,440,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,477,989.28 : 468,742,542.65 = 156,951,826.80 : x
  2. Step 2: Convert to fraction form
    312,477,989.28/468,742,542.65 = 156,951,826.80/x
  3. Step 3: Cross multiply
    312,477,989.28x = 468,742,542.65 × 156,951,826.80
  4. Step 4: Simplify right side
    312,477,989.28x = 73,569,998,367,794,416
  5. Step 5: Solve for x
    x = 73,569,998,367,794,416/312,477,989.28
  6. Step 6: Final answer
    x = 235,440,577.87

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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.