Home / 10,428,635.15-15,639,757.47-7,210,850.75

Finding the Fourth Proportional to 10,428,635.15, 15,639,757.47 and 7,210,850.75

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Solution

The fourth proportional to 10,428,635.15, 15,639,757.47 and 7,210,850.75 is: 10,814,066.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428,635.15 : 15,639,757.47 = 7,210,850.75 : x
  2. Step 2: Convert to fraction form
    10,428,635.15/15,639,757.47 = 7,210,850.75/x
  3. Step 3: Cross multiply
    10,428,635.15x = 15,639,757.47 × 7,210,850.75
  4. Step 4: Simplify right side
    10,428,635.15x = 112,775,956,804,168.83
  5. Step 5: Solve for x
    x = 112,775,956,804,168.83/10,428,635.15
  6. Step 6: Final answer
    x = 10,814,066.77

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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.