Home / 12,507,065.80-18,746,601.90-5,317,376.20

Finding the Fourth Proportional to 12,507,065.80, 18,746,601.90 and 5,317,376.20

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Solution

The fourth proportional to 12,507,065.80, 18,746,601.90 and 5,317,376.20 is: 7,970,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,065.80 : 18,746,601.90 = 5,317,376.20 : x
  2. Step 2: Convert to fraction form
    12,507,065.80/18,746,601.90 = 5,317,376.20/x
  3. Step 3: Cross multiply
    12,507,065.80x = 18,746,601.90 × 5,317,376.20
  4. Step 4: Simplify right side
    12,507,065.80x = 99,682,734,773,934.78
  5. Step 5: Solve for x
    x = 99,682,734,773,934.78/12,507,065.80
  6. Step 6: Final answer
    x = 7,970,113.56

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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.