Home / 21,275,711.12-31,913,566.44-5,319,359.12

Finding the Fourth Proportional to 21,275,711.12, 31,913,566.44 and 5,319,359.12

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Solution

The fourth proportional to 21,275,711.12, 31,913,566.44 and 5,319,359.12 is: 7,979,038.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,711.12 : 31,913,566.44 = 5,319,359.12 : x
  2. Step 2: Convert to fraction form
    21,275,711.12/31,913,566.44 = 5,319,359.12/x
  3. Step 3: Cross multiply
    21,275,711.12x = 31,913,566.44 × 5,319,359.12
  4. Step 4: Simplify right side
    21,275,711.12x = 169,759,720,534,772.12
  5. Step 5: Solve for x
    x = 169,759,720,534,772.12/21,275,711.12
  6. Step 6: Final answer
    x = 7,979,038.61

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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.