Home / 18,916,990.14-28,271,831.82-13,810,174.23

Finding the Fourth Proportional to 18,916,990.14, 28,271,831.82 and 13,810,174.23

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Solution

The fourth proportional to 18,916,990.14, 28,271,831.82 and 13,810,174.23 is: 20,639,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916,990.14 : 28,271,831.82 = 13,810,174.23 : x
  2. Step 2: Convert to fraction form
    18,916,990.14/28,271,831.82 = 13,810,174.23/x
  3. Step 3: Cross multiply
    18,916,990.14x = 28,271,831.82 × 13,810,174.23
  4. Step 4: Simplify right side
    18,916,990.14x = 390,438,923,235,458
  5. Step 5: Solve for x
    x = 390,438,923,235,458/18,916,990.14
  6. Step 6: Final answer
    x = 20,639,590.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.