Home / 20,649,681.25-28,497,255.90-11,357,642.44

Finding the Fourth Proportional to 20,649,681.25, 28,497,255.90 and 11,357,642.44

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Solution

The fourth proportional to 20,649,681.25, 28,497,255.90 and 11,357,642.44 is: 15,673,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,681.25 : 28,497,255.90 = 11,357,642.44 : x
  2. Step 2: Convert to fraction form
    20,649,681.25/28,497,255.90 = 11,357,642.44/x
  3. Step 3: Cross multiply
    20,649,681.25x = 28,497,255.90 × 11,357,642.44
  4. Step 4: Simplify right side
    20,649,681.25x = 323,661,643,033,380.38
  5. Step 5: Solve for x
    x = 323,661,643,033,380.38/20,649,681.25
  6. Step 6: Final answer
    x = 15,673,929.25

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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.