Home / 14,220,530.78-21,321,828.11-7,835,267.17

Finding the Fourth Proportional to 14,220,530.78, 21,321,828.11 and 7,835,267.17

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Solution

The fourth proportional to 14,220,530.78, 21,321,828.11 and 7,835,267.17 is: 11,747,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220,530.78 : 21,321,828.11 = 7,835,267.17 : x
  2. Step 2: Convert to fraction form
    14,220,530.78/21,321,828.11 = 7,835,267.17/x
  3. Step 3: Cross multiply
    14,220,530.78x = 21,321,828.11 × 7,835,267.17
  4. Step 4: Simplify right side
    14,220,530.78x = 167,062,219,747,889.78
  5. Step 5: Solve for x
    x = 167,062,219,747,889.78/14,220,530.78
  6. Step 6: Final answer
    x = 11,747,959.50

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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.