Home / 38,502,321.47-53,135,810.49-21,751,251.20

Finding the Fourth Proportional to 38,502,321.47, 53,135,810.49 and 21,751,251.20

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Solution

The fourth proportional to 38,502,321.47, 53,135,810.49 and 21,751,251.20 is: 30,018,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502,321.47 : 53,135,810.49 = 21,751,251.20 : x
  2. Step 2: Convert to fraction form
    38,502,321.47/53,135,810.49 = 21,751,251.20/x
  3. Step 3: Cross multiply
    38,502,321.47x = 53,135,810.49 × 21,751,251.20
  4. Step 4: Simplify right side
    38,502,321.47x = 1,155,770,361,683,585
  5. Step 5: Solve for x
    x = 1,155,770,361,683,585/38,502,321.47
  6. Step 6: Final answer
    x = 30,018,199.36

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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.