Home / 13,421,930.04-18,516,371.58-9,069,430.68

Finding the Fourth Proportional to 13,421,930.04, 18,516,371.58 and 9,069,430.68

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Solution

The fourth proportional to 13,421,930.04, 18,516,371.58 and 9,069,430.68 is: 12,511,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421,930.04 : 18,516,371.58 = 9,069,430.68 : x
  2. Step 2: Convert to fraction form
    13,421,930.04/18,516,371.58 = 9,069,430.68/x
  3. Step 3: Cross multiply
    13,421,930.04x = 18,516,371.58 × 9,069,430.68
  4. Step 4: Simplify right side
    13,421,930.04x = 167,932,948,489,932.06
  5. Step 5: Solve for x
    x = 167,932,948,489,932.06/13,421,930.04
  6. Step 6: Final answer
    x = 12,511,833.10

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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.