Home / 38,768,049.74-53,499,919.75-21,126,957.13

Finding the Fourth Proportional to 38,768,049.74, 53,499,919.75 and 21,126,957.13

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Solution

The fourth proportional to 38,768,049.74, 53,499,919.75 and 21,126,957.13 is: 29,155,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768,049.74 : 53,499,919.75 = 21,126,957.13 : x
  2. Step 2: Convert to fraction form
    38,768,049.74/53,499,919.75 = 21,126,957.13/x
  3. Step 3: Cross multiply
    38,768,049.74x = 53,499,919.75 × 21,126,957.13
  4. Step 4: Simplify right side
    38,768,049.74x = 1,130,290,511,016,690.25
  5. Step 5: Solve for x
    x = 1,130,290,511,016,690.25/38,768,049.74
  6. Step 6: Final answer
    x = 29,155,206.89

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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.