Home / 18,709,972.63-28,065,964.99-5,931,473.78

Finding the Fourth Proportional to 18,709,972.63, 28,065,964.99 and 5,931,473.78

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Solution

The fourth proportional to 18,709,972.63, 28,065,964.99 and 5,931,473.78 is: 8,897,529.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,972.63 : 28,065,964.99 = 5,931,473.78 : x
  2. Step 2: Convert to fraction form
    18,709,972.63/28,065,964.99 = 5,931,473.78/x
  3. Step 3: Cross multiply
    18,709,972.63x = 28,065,964.99 × 5,931,473.78
  4. Step 4: Simplify right side
    18,709,972.63x = 166,472,535,448,582.97
  5. Step 5: Solve for x
    x = 166,472,535,448,582.97/18,709,972.63
  6. Step 6: Final answer
    x = 8,897,529.61

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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.