Home / 9,177,716.32-12,666,833.80-5,312,368.72

Finding the Fourth Proportional to 9,177,716.32, 12,666,833.80 and 5,312,368.72

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Solution

The fourth proportional to 9,177,716.32, 12,666,833.80 and 5,312,368.72 is: 7,331,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177,716.32 : 12,666,833.80 = 5,312,368.72 : x
  2. Step 2: Convert to fraction form
    9,177,716.32/12,666,833.80 = 5,312,368.72/x
  3. Step 3: Cross multiply
    9,177,716.32x = 12,666,833.80 × 5,312,368.72
  4. Step 4: Simplify right side
    9,177,716.32x = 67,290,891,660,558.73
  5. Step 5: Solve for x
    x = 67,290,891,660,558.73/9,177,716.32
  6. Step 6: Final answer
    x = 7,331,986.45

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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.