Home / 38,238,900.12-52,769,016.54-20,835,389.16

Finding the Fourth Proportional to 38,238,900.12, 52,769,016.54 and 20,835,389.16

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Solution

The fourth proportional to 38,238,900.12, 52,769,016.54 and 20,835,389.16 is: 28,752,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,900.12 : 52,769,016.54 = 20,835,389.16 : x
  2. Step 2: Convert to fraction form
    38,238,900.12/52,769,016.54 = 20,835,389.16/x
  3. Step 3: Cross multiply
    38,238,900.12x = 52,769,016.54 × 20,835,389.16
  4. Step 4: Simplify right side
    38,238,900.12x = 1,099,462,995,201,376.75
  5. Step 5: Solve for x
    x = 1,099,462,995,201,376.75/38,238,900.12
  6. Step 6: Final answer
    x = 28,752,474.36

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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.