Home / 15,356,388.44-21,201,400.69-9,777,783.38

Finding the Fourth Proportional to 15,356,388.44, 21,201,400.69 and 9,777,783.38

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Solution

The fourth proportional to 15,356,388.44, 21,201,400.69 and 9,777,783.38 is: 13,499,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356,388.44 : 21,201,400.69 = 9,777,783.38 : x
  2. Step 2: Convert to fraction form
    15,356,388.44/21,201,400.69 = 9,777,783.38/x
  3. Step 3: Cross multiply
    15,356,388.44x = 21,201,400.69 × 9,777,783.38
  4. Step 4: Simplify right side
    15,356,388.44x = 207,302,703,168,951.06
  5. Step 5: Solve for x
    x = 207,302,703,168,951.06/15,356,388.44
  6. Step 6: Final answer
    x = 13,499,443.83

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1.5x scale

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.