Home / 11,686,000.80-17,558,492.40-7,428,208.80

Finding the Fourth Proportional to 11,686,000.80, 17,558,492.40 and 7,428,208.80

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Solution

The fourth proportional to 11,686,000.80, 17,558,492.40 and 7,428,208.80 is: 11,161,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686,000.80 : 17,558,492.40 = 7,428,208.80 : x
  2. Step 2: Convert to fraction form
    11,686,000.80/17,558,492.40 = 7,428,208.80/x
  3. Step 3: Cross multiply
    11,686,000.80x = 17,558,492.40 × 7,428,208.80
  4. Step 4: Simplify right side
    11,686,000.80x = 130,428,147,760,413.11
  5. Step 5: Solve for x
    x = 130,428,147,760,413.11/11,686,000.80
  6. Step 6: Final answer
    x = 11,161,059.29

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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.