Home / 134,857,673.52-186,103,589.70-72,978,012.09

Finding the Fourth Proportional to 134,857,673.52, 186,103,589.70 and 72,978,012.09

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Solution

The fourth proportional to 134,857,673.52, 186,103,589.70 and 72,978,012.09 is: 100,709,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,673.52 : 186,103,589.70 = 72,978,012.09 : x
  2. Step 2: Convert to fraction form
    134,857,673.52/186,103,589.70 = 72,978,012.09/x
  3. Step 3: Cross multiply
    134,857,673.52x = 186,103,589.70 × 72,978,012.09
  4. Step 4: Simplify right side
    134,857,673.52x = 13,581,470,017,823,590
  5. Step 5: Solve for x
    x = 13,581,470,017,823,590/134,857,673.52
  6. Step 6: Final answer
    x = 100,709,656.81

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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.