Home / 28,459,222.72-39,273,739.50-15,406,481.32

Finding the Fourth Proportional to 28,459,222.72, 39,273,739.50 and 15,406,481.32

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Solution

The fourth proportional to 28,459,222.72, 39,273,739.50 and 15,406,481.32 is: 21,260,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,222.72 : 39,273,739.50 = 15,406,481.32 : x
  2. Step 2: Convert to fraction form
    28,459,222.72/39,273,739.50 = 15,406,481.32/x
  3. Step 3: Cross multiply
    28,459,222.72x = 39,273,739.50 × 15,406,481.32
  4. Step 4: Simplify right side
    28,459,222.72x = 605,070,133,973,296.12
  5. Step 5: Solve for x
    x = 605,070,133,973,296.12/28,459,222.72
  6. Step 6: Final answer
    x = 21,260,950.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.