Home / 38,642,787.56-53,327,458.80-21,001,690.02

Finding the Fourth Proportional to 38,642,787.56, 53,327,458.80 and 21,001,690.02

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Solution

The fourth proportional to 38,642,787.56, 53,327,458.80 and 21,001,690.02 is: 28,982,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,642,787.56 : 53,327,458.80 = 21,001,690.02 : x
  2. Step 2: Convert to fraction form
    38,642,787.56/53,327,458.80 = 21,001,690.02/x
  3. Step 3: Cross multiply
    38,642,787.56x = 53,327,458.80 × 21,001,690.02
  4. Step 4: Simplify right side
    38,642,787.56x = 1,119,966,759,271,921.12
  5. Step 5: Solve for x
    x = 1,119,966,759,271,921.12/38,642,787.56
  6. Step 6: Final answer
    x = 28,982,556.13

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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.