Home / 7,872,950.40-11,812,190.40-3,386,601.60

Finding the Fourth Proportional to 7,872,950.40, 11,812,190.40 and 3,386,601.60

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Solution

The fourth proportional to 7,872,950.40, 11,812,190.40 and 3,386,601.60 is: 5,081,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872,950.40 : 11,812,190.40 = 3,386,601.60 : x
  2. Step 2: Convert to fraction form
    7,872,950.40/11,812,190.40 = 3,386,601.60/x
  3. Step 3: Cross multiply
    7,872,950.40x = 11,812,190.40 × 3,386,601.60
  4. Step 4: Simplify right side
    7,872,950.40x = 40,003,182,908,144.64
  5. Step 5: Solve for x
    x = 40,003,182,908,144.64/7,872,950.40
  6. Step 6: Final answer
    x = 5,081,091.70

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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.