Home / 21,275,637-31,913,456.22-5,319,285

Finding the Fourth Proportional to 21,275,637, 31,913,456.22 and 5,319,285

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Solution

The fourth proportional to 21,275,637, 31,913,456.22 and 5,319,285 is: 7,978,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,637 : 31,913,456.22 = 5,319,285 : x
  2. Step 2: Convert to fraction form
    21,275,637/31,913,456.22 = 5,319,285/x
  3. Step 3: Cross multiply
    21,275,637x = 31,913,456.22 × 5,319,285
  4. Step 4: Simplify right side
    21,275,637x = 169,756,768,969,202.69
  5. Step 5: Solve for x
    x = 169,756,768,969,202.69/21,275,637
  6. Step 6: Final answer
    x = 7,978,927.68

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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.