Home / 38,620,777.59-53,296,694.60-21,218,243.82

Finding the Fourth Proportional to 38,620,777.59, 53,296,694.60 and 21,218,243.82

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Solution

The fourth proportional to 38,620,777.59, 53,296,694.60 and 21,218,243.82 is: 29,281,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620,777.59 : 53,296,694.60 = 21,218,243.82 : x
  2. Step 2: Convert to fraction form
    38,620,777.59/53,296,694.60 = 21,218,243.82/x
  3. Step 3: Cross multiply
    38,620,777.59x = 53,296,694.60 × 21,218,243.82
  4. Step 4: Simplify right side
    38,620,777.59x = 1,130,862,260,849,400.25
  5. Step 5: Solve for x
    x = 1,130,862,260,849,400.25/38,620,777.59
  6. Step 6: Final answer
    x = 29,281,188.30

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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.