Home / 20,514,051.18-28,308,454.11-11,221,488.18

Finding the Fourth Proportional to 20,514,051.18, 28,308,454.11 and 11,221,488.18

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Solution

The fourth proportional to 20,514,051.18, 28,308,454.11 and 11,221,488.18 is: 15,485,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514,051.18 : 28,308,454.11 = 11,221,488.18 : x
  2. Step 2: Convert to fraction form
    20,514,051.18/28,308,454.11 = 11,221,488.18/x
  3. Step 3: Cross multiply
    20,514,051.18x = 28,308,454.11 × 11,221,488.18
  4. Step 4: Simplify right side
    20,514,051.18x = 317,662,983,189,437.38
  5. Step 5: Solve for x
    x = 317,662,983,189,437.38/20,514,051.18
  6. Step 6: Final answer
    x = 15,485,141.40

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1.5x scale

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.