Home / 134,857,678.72-186,103,596.86-72,978,017.26

Finding the Fourth Proportional to 134,857,678.72, 186,103,596.86 and 72,978,017.26

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Solution

The fourth proportional to 134,857,678.72, 186,103,596.86 and 72,978,017.26 is: 100,709,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,678.72 : 186,103,596.86 = 72,978,017.26 : x
  2. Step 2: Convert to fraction form
    134,857,678.72/186,103,596.86 = 72,978,017.26/x
  3. Step 3: Cross multiply
    134,857,678.72x = 186,103,596.86 × 72,978,017.26
  4. Step 4: Simplify right side
    134,857,678.72x = 13,581,471,503,797,164
  5. Step 5: Solve for x
    x = 13,581,471,503,797,164/134,857,678.72
  6. Step 6: Final answer
    x = 100,709,663.94

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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.