Home / 12,182,982.85-18,262,159.94-7,637,221.64

Finding the Fourth Proportional to 12,182,982.85, 18,262,159.94 and 7,637,221.64

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Solution

The fourth proportional to 12,182,982.85, 18,262,159.94 and 7,637,221.64 is: 11,448,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182,982.85 : 18,262,159.94 = 7,637,221.64 : x
  2. Step 2: Convert to fraction form
    12,182,982.85/18,262,159.94 = 7,637,221.64/x
  3. Step 3: Cross multiply
    12,182,982.85x = 18,262,159.94 × 7,637,221.64
  4. Step 4: Simplify right side
    12,182,982.85x = 139,472,162,995,598.31
  5. Step 5: Solve for x
    x = 139,472,162,995,598.31/12,182,982.85
  6. Step 6: Final answer
    x = 11,448,112.89

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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.