Home / 38,984,786.19-53,799,430.10-21,581,422.04

Finding the Fourth Proportional to 38,984,786.19, 53,799,430.10 and 21,581,422.04

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Solution

The fourth proportional to 38,984,786.19, 53,799,430.10 and 21,581,422.04 is: 29,782,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,984,786.19 : 53,799,430.10 = 21,581,422.04 : x
  2. Step 2: Convert to fraction form
    38,984,786.19/53,799,430.10 = 21,581,422.04/x
  3. Step 3: Cross multiply
    38,984,786.19x = 53,799,430.10 × 21,581,422.04
  4. Step 4: Simplify right side
    38,984,786.19x = 1,161,068,206,526,170.75
  5. Step 5: Solve for x
    x = 1,161,068,206,526,170.75/38,984,786.19
  6. Step 6: Final answer
    x = 29,782,597.78

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Double scale
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1.5x scale

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.