Home / 18,727,708.80-28,084,564.80-7,365,806.40

Finding the Fourth Proportional to 18,727,708.80, 28,084,564.80 and 7,365,806.40

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Solution

The fourth proportional to 18,727,708.80, 28,084,564.80 and 7,365,806.40 is: 11,045,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,708.80 : 28,084,564.80 = 7,365,806.40 : x
  2. Step 2: Convert to fraction form
    18,727,708.80/28,084,564.80 = 7,365,806.40/x
  3. Step 3: Cross multiply
    18,727,708.80x = 28,084,564.80 × 7,365,806.40
  4. Step 4: Simplify right side
    18,727,708.80x = 206,865,467,145,054.75
  5. Step 5: Solve for x
    x = 206,865,467,145,054.75/18,727,708.80
  6. Step 6: Final answer
    x = 11,045,957.06

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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.