Home / 55,331,380.40-76,358,518.72-30,551,500.34

Finding the Fourth Proportional to 55,331,380.40, 76,358,518.72 and 30,551,500.34

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Solution

The fourth proportional to 55,331,380.40, 76,358,518.72 and 30,551,500.34 is: 42,161,740.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331,380.40 : 76,358,518.72 = 30,551,500.34 : x
  2. Step 2: Convert to fraction form
    55,331,380.40/76,358,518.72 = 30,551,500.34/x
  3. Step 3: Cross multiply
    55,331,380.40x = 76,358,518.72 × 30,551,500.34
  4. Step 4: Simplify right side
    55,331,380.40x = 2,332,867,310,635,976.50
  5. Step 5: Solve for x
    x = 2,332,867,310,635,976.50/55,331,380.40
  6. Step 6: Final answer
    x = 42,161,740.66

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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.