Home / 12,745,803.15-19,100,158.95-7,877,716.11

Finding the Fourth Proportional to 12,745,803.15, 19,100,158.95 and 7,877,716.11

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Solution

The fourth proportional to 12,745,803.15, 19,100,158.95 and 7,877,716.11 is: 11,805,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,803.15 : 19,100,158.95 = 7,877,716.11 : x
  2. Step 2: Convert to fraction form
    12,745,803.15/19,100,158.95 = 7,877,716.11/x
  3. Step 3: Cross multiply
    12,745,803.15x = 19,100,158.95 × 7,877,716.11
  4. Step 4: Simplify right side
    12,745,803.15x = 150,465,629,863,975.69
  5. Step 5: Solve for x
    x = 150,465,629,863,975.69/12,745,803.15
  6. Step 6: Final answer
    x = 11,805,111.70

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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.