Home / 20,196,437.80-30,294,656.70-11,672,386.60

Finding the Fourth Proportional to 20,196,437.80, 30,294,656.70 and 11,672,386.60

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Solution

The fourth proportional to 20,196,437.80, 30,294,656.70 and 11,672,386.60 is: 17,508,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196,437.80 : 30,294,656.70 = 11,672,386.60 : x
  2. Step 2: Convert to fraction form
    20,196,437.80/30,294,656.70 = 11,672,386.60/x
  3. Step 3: Cross multiply
    20,196,437.80x = 30,294,656.70 × 11,672,386.60
  4. Step 4: Simplify right side
    20,196,437.80x = 353,610,944,916,680.19
  5. Step 5: Solve for x
    x = 353,610,944,916,680.19/20,196,437.80
  6. Step 6: Final answer
    x = 17,508,579.90

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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.