Home / 15,065,332.40-20,790,071.88-8,540,192.72

Finding the Fourth Proportional to 15,065,332.40, 20,790,071.88 and 8,540,192.72

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Solution

The fourth proportional to 15,065,332.40, 20,790,071.88 and 8,540,192.72 is: 11,785,416.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,332.40 : 20,790,071.88 = 8,540,192.72 : x
  2. Step 2: Convert to fraction form
    15,065,332.40/20,790,071.88 = 8,540,192.72/x
  3. Step 3: Cross multiply
    15,065,332.40x = 20,790,071.88 × 8,540,192.72
  4. Step 4: Simplify right side
    15,065,332.40x = 177,551,220,517,852.72
  5. Step 5: Solve for x
    x = 177,551,220,517,852.72/15,065,332.40
  6. Step 6: Final answer
    x = 11,785,416.73

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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.