Home / 8,709,780.87-12,020,169.96-5,225,250.15

Finding the Fourth Proportional to 8,709,780.87, 12,020,169.96 and 5,225,250.15

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Solution

The fourth proportional to 8,709,780.87, 12,020,169.96 and 5,225,250.15 is: 7,211,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709,780.87 : 12,020,169.96 = 5,225,250.15 : x
  2. Step 2: Convert to fraction form
    8,709,780.87/12,020,169.96 = 5,225,250.15/x
  3. Step 3: Cross multiply
    8,709,780.87x = 12,020,169.96 × 5,225,250.15
  4. Step 4: Simplify right side
    8,709,780.87x = 62,808,394,886,515.50
  5. Step 5: Solve for x
    x = 62,808,394,886,515.50/8,709,780.87
  6. Step 6: Final answer
    x = 7,211,248.57

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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.