Home / 38,666,712.50-53,347,004.80-21,919,656.59

Finding the Fourth Proportional to 38,666,712.50, 53,347,004.80 and 21,919,656.59

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Solution

The fourth proportional to 38,666,712.50, 53,347,004.80 and 21,919,656.59 is: 30,241,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666,712.50 : 53,347,004.80 = 21,919,656.59 : x
  2. Step 2: Convert to fraction form
    38,666,712.50/53,347,004.80 = 21,919,656.59/x
  3. Step 3: Cross multiply
    38,666,712.50x = 53,347,004.80 × 21,919,656.59
  4. Step 4: Simplify right side
    38,666,712.50x = 1,169,348,025,321,081.50
  5. Step 5: Solve for x
    x = 1,169,348,025,321,081.50/38,666,712.50
  6. Step 6: Final answer
    x = 30,241,723.43

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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.