Home / 86,317,793.40-129,264,113.70-40,826,443.80

Finding the Fourth Proportional to 86,317,793.40, 129,264,113.70 and 40,826,443.80

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Solution

The fourth proportional to 86,317,793.40, 129,264,113.70 and 40,826,443.80 is: 61,139,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317,793.40 : 129,264,113.70 = 40,826,443.80 : x
  2. Step 2: Convert to fraction form
    86,317,793.40/129,264,113.70 = 40,826,443.80/x
  3. Step 3: Cross multiply
    86,317,793.40x = 129,264,113.70 × 40,826,443.80
  4. Step 4: Simplify right side
    86,317,793.40x = 5,277,394,073,329,860
  5. Step 5: Solve for x
    x = 5,277,394,073,329,860/86,317,793.40
  6. Step 6: Final answer
    x = 61,139,121.67

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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.