Home / 21,167,360.80-31,755,188.40-9,036,800.80

Finding the Fourth Proportional to 21,167,360.80, 31,755,188.40 and 9,036,800.80

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Solution

The fourth proportional to 21,167,360.80, 31,755,188.40 and 9,036,800.80 is: 13,556,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,360.80 : 31,755,188.40 = 9,036,800.80 : x
  2. Step 2: Convert to fraction form
    21,167,360.80/31,755,188.40 = 9,036,800.80/x
  3. Step 3: Cross multiply
    21,167,360.80x = 31,755,188.40 × 9,036,800.80
  4. Step 4: Simplify right side
    21,167,360.80x = 286,965,311,937,270.75
  5. Step 5: Solve for x
    x = 286,965,311,937,270.75/21,167,360.80
  6. Step 6: Final answer
    x = 13,556,971.73

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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.