Home / 52,686,833.12-78,972,597.92-27,129,376.16

Finding the Fourth Proportional to 52,686,833.12, 78,972,597.92 and 27,129,376.16

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Solution

The fourth proportional to 52,686,833.12, 78,972,597.92 and 27,129,376.16 is: 40,664,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,686,833.12 : 78,972,597.92 = 27,129,376.16 : x
  2. Step 2: Convert to fraction form
    52,686,833.12/78,972,597.92 = 27,129,376.16/x
  3. Step 3: Cross multiply
    52,686,833.12x = 78,972,597.92 × 27,129,376.16
  4. Step 4: Simplify right side
    52,686,833.12x = 2,142,477,314,977,074
  5. Step 5: Solve for x
    x = 2,142,477,314,977,074/52,686,833.12
  6. Step 6: Final answer
    x = 40,664,378.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.