Home / 137,965,681.52-207,034,678.79-91,939,846.18

Finding the Fourth Proportional to 137,965,681.52, 207,034,678.79 and 91,939,846.18

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Solution

The fourth proportional to 137,965,681.52, 207,034,678.79 and 91,939,846.18 is: 137,967,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,965,681.52 : 207,034,678.79 = 91,939,846.18 : x
  2. Step 2: Convert to fraction form
    137,965,681.52/207,034,678.79 = 91,939,846.18/x
  3. Step 3: Cross multiply
    137,965,681.52x = 207,034,678.79 × 91,939,846.18
  4. Step 4: Simplify right side
    137,965,681.52x = 19,034,736,521,633,984
  5. Step 5: Solve for x
    x = 19,034,736,521,633,984/137,965,681.52
  6. Step 6: Final answer
    x = 137,967,183.67

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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.