Home / 31,184,787.07-43,040,316.05-18,139,607.88

Finding the Fourth Proportional to 31,184,787.07, 43,040,316.05 and 18,139,607.88

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Solution

The fourth proportional to 31,184,787.07, 43,040,316.05 and 18,139,607.88 is: 25,035,747.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,184,787.07 : 43,040,316.05 = 18,139,607.88 : x
  2. Step 2: Convert to fraction form
    31,184,787.07/43,040,316.05 = 18,139,607.88/x
  3. Step 3: Cross multiply
    31,184,787.07x = 43,040,316.05 × 18,139,607.88
  4. Step 4: Simplify right side
    31,184,787.07x = 780,734,456,178,270.38
  5. Step 5: Solve for x
    x = 780,734,456,178,270.38/31,184,787.07
  6. Step 6: Final answer
    x = 25,035,747.54

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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.