Home / 38,770,166.43-53,502,838.19-21,129,073.29

Finding the Fourth Proportional to 38,770,166.43, 53,502,838.19 and 21,129,073.29

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Solution

The fourth proportional to 38,770,166.43, 53,502,838.19 and 21,129,073.29 is: 29,158,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770,166.43 : 53,502,838.19 = 21,129,073.29 : x
  2. Step 2: Convert to fraction form
    38,770,166.43/53,502,838.19 = 21,129,073.29/x
  3. Step 3: Cross multiply
    38,770,166.43x = 53,502,838.19 × 21,129,073.29
  4. Step 4: Simplify right side
    38,770,166.43x = 1,130,465,389,233,875.50
  5. Step 5: Solve for x
    x = 1,130,465,389,233,875.50/38,770,166.43
  6. Step 6: Final answer
    x = 29,158,125.78

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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.