Home / 12,188,862.71-18,289,285.08-4,902,031.58

Finding the Fourth Proportional to 12,188,862.71, 18,289,285.08 and 4,902,031.58

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Solution

The fourth proportional to 12,188,862.71, 18,289,285.08 and 4,902,031.58 is: 7,355,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,862.71 : 18,289,285.08 = 4,902,031.58 : x
  2. Step 2: Convert to fraction form
    12,188,862.71/18,289,285.08 = 4,902,031.58/x
  3. Step 3: Cross multiply
    12,188,862.71x = 18,289,285.08 × 4,902,031.58
  4. Step 4: Simplify right side
    12,188,862.71x = 89,654,653,037,782.81
  5. Step 5: Solve for x
    x = 89,654,653,037,782.81/12,188,862.71
  6. Step 6: Final answer
    x = 7,355,456.79

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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.