Home / 14,939,419.46-20,617,277.56-9,139,312.98

Finding the Fourth Proportional to 14,939,419.46, 20,617,277.56 and 9,139,312.98

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Solution

The fourth proportional to 14,939,419.46, 20,617,277.56 and 9,139,312.98 is: 12,612,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939,419.46 : 20,617,277.56 = 9,139,312.98 : x
  2. Step 2: Convert to fraction form
    14,939,419.46/20,617,277.56 = 9,139,312.98/x
  3. Step 3: Cross multiply
    14,939,419.46x = 20,617,277.56 × 9,139,312.98
  4. Step 4: Simplify right side
    14,939,419.46x = 188,427,752,416,370.72
  5. Step 5: Solve for x
    x = 188,427,752,416,370.72/14,939,419.46
  6. Step 6: Final answer
    x = 12,612,789.47

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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.