Home / 12,918,732.92-19,381,889.01-3,821,070.50

Finding the Fourth Proportional to 12,918,732.92, 19,381,889.01 and 3,821,070.50

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Solution

The fourth proportional to 12,918,732.92, 19,381,889.01 and 3,821,070.50 is: 5,732,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,732.92 : 19,381,889.01 = 3,821,070.50 : x
  2. Step 2: Convert to fraction form
    12,918,732.92/19,381,889.01 = 3,821,070.50/x
  3. Step 3: Cross multiply
    12,918,732.92x = 19,381,889.01 × 3,821,070.50
  4. Step 4: Simplify right side
    12,918,732.92x = 74,059,564,330,385.22
  5. Step 5: Solve for x
    x = 74,059,564,330,385.22/12,918,732.92
  6. Step 6: Final answer
    x = 5,732,726.64

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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.