Home / 13,137,502.90-18,138,284.76-11,758,458.46

Finding the Fourth Proportional to 13,137,502.90, 18,138,284.76 and 11,758,458.46

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Solution

The fourth proportional to 13,137,502.90, 18,138,284.76 and 11,758,458.46 is: 16,234,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,502.90 : 18,138,284.76 = 11,758,458.46 : x
  2. Step 2: Convert to fraction form
    13,137,502.90/18,138,284.76 = 11,758,458.46/x
  3. Step 3: Cross multiply
    13,137,502.90x = 18,138,284.76 × 11,758,458.46
  4. Step 4: Simplify right side
    13,137,502.90x = 213,278,267,886,111.09
  5. Step 5: Solve for x
    x = 213,278,267,886,111.09/13,137,502.90
  6. Step 6: Final answer
    x = 16,234,307.96

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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.