Home / 12,945,394.97-19,421,253.98-4,309,478.72

Finding the Fourth Proportional to 12,945,394.97, 19,421,253.98 and 4,309,478.72

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Solution

The fourth proportional to 12,945,394.97, 19,421,253.98 and 4,309,478.72 is: 6,465,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,394.97 : 19,421,253.98 = 4,309,478.72 : x
  2. Step 2: Convert to fraction form
    12,945,394.97/19,421,253.98 = 4,309,478.72/x
  3. Step 3: Cross multiply
    12,945,394.97x = 19,421,253.98 × 4,309,478.72
  4. Step 4: Simplify right side
    12,945,394.97x = 83,695,480,742,525.30
  5. Step 5: Solve for x
    x = 83,695,480,742,525.30/12,945,394.97
  6. Step 6: Final answer
    x = 6,465,270.54

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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.