Home / 28,146,048.54-42,222,222.09-8,972,357.10

Finding the Fourth Proportional to 28,146,048.54, 42,222,222.09 and 8,972,357.10

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Solution

The fourth proportional to 28,146,048.54, 42,222,222.09 and 8,972,357.10 is: 13,459,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146,048.54 : 42,222,222.09 = 8,972,357.10 : x
  2. Step 2: Convert to fraction form
    28,146,048.54/42,222,222.09 = 8,972,357.10/x
  3. Step 3: Cross multiply
    28,146,048.54x = 42,222,222.09 × 8,972,357.10
  4. Step 4: Simplify right side
    28,146,048.54x = 378,832,854,146,988.38
  5. Step 5: Solve for x
    x = 378,832,854,146,988.38/28,146,048.54
  6. Step 6: Final answer
    x = 13,459,539.57

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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.