Home / 38,655,879.12-53,345,147.40-21,252,520.56

Finding the Fourth Proportional to 38,655,879.12, 53,345,147.40 and 21,252,520.56

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Solution

The fourth proportional to 38,655,879.12, 53,345,147.40 and 21,252,520.56 is: 29,328,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655,879.12 : 53,345,147.40 = 21,252,520.56 : x
  2. Step 2: Convert to fraction form
    38,655,879.12/53,345,147.40 = 21,252,520.56/x
  3. Step 3: Cross multiply
    38,655,879.12x = 53,345,147.40 × 21,252,520.56
  4. Step 4: Simplify right side
    38,655,879.12x = 1,133,718,841,894,730.50
  5. Step 5: Solve for x
    x = 1,133,718,841,894,730.50/38,655,879.12
  6. Step 6: Final answer
    x = 29,328,497.18

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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.