Home / 15,484,018.88-21,369,141.36-9,289,297.60

Finding the Fourth Proportional to 15,484,018.88, 21,369,141.36 and 9,289,297.60

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Solution

The fourth proportional to 15,484,018.88, 21,369,141.36 and 9,289,297.60 is: 12,819,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484,018.88 : 21,369,141.36 = 9,289,297.60 : x
  2. Step 2: Convert to fraction form
    15,484,018.88/21,369,141.36 = 9,289,297.60/x
  3. Step 3: Cross multiply
    15,484,018.88x = 21,369,141.36 × 9,289,297.60
  4. Step 4: Simplify right side
    15,484,018.88x = 198,504,313,549,508.72
  5. Step 5: Solve for x
    x = 198,504,313,549,508.72/15,484,018.88
  6. Step 6: Final answer
    x = 12,819,947.79

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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.