Home / 74,445,009.20-111,667,513.80-55,313,133.20

Finding the Fourth Proportional to 74,445,009.20, 111,667,513.80 and 55,313,133.20

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Solution

The fourth proportional to 74,445,009.20, 111,667,513.80 and 55,313,133.20 is: 82,969,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,445,009.20 : 111,667,513.80 = 55,313,133.20 : x
  2. Step 2: Convert to fraction form
    74,445,009.20/111,667,513.80 = 55,313,133.20/x
  3. Step 3: Cross multiply
    74,445,009.20x = 111,667,513.80 × 55,313,133.20
  4. Step 4: Simplify right side
    74,445,009.20x = 6,176,680,064,932,238
  5. Step 5: Solve for x
    x = 6,176,680,064,932,238/74,445,009.20
  6. Step 6: Final answer
    x = 82,969,699.80

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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.