Home / 20,219,689.60-30,329,534.40-18,204,150.40

Finding the Fourth Proportional to 20,219,689.60, 30,329,534.40 and 18,204,150.40

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Solution

The fourth proportional to 20,219,689.60, 30,329,534.40 and 18,204,150.40 is: 27,306,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,689.60 : 30,329,534.40 = 18,204,150.40 : x
  2. Step 2: Convert to fraction form
    20,219,689.60/30,329,534.40 = 18,204,150.40/x
  3. Step 3: Cross multiply
    20,219,689.60x = 30,329,534.40 × 18,204,150.40
  4. Step 4: Simplify right side
    20,219,689.60x = 552,123,405,779,573.69
  5. Step 5: Solve for x
    x = 552,123,405,779,573.69/20,219,689.60
  6. Step 6: Final answer
    x = 27,306,225.60

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1.5x scale

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.