Home / 210,166,484,648.79-315,290,286,554.62-68,637,857,977.11

Finding the Fourth Proportional to 210,166,484,648.79, 315,290,286,554.62 and 68,637,857,977.11

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Solution

The fourth proportional to 210,166,484,648.79, 315,290,286,554.62 and 68,637,857,977.11 is: 102,970,033,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,166,484,648.79 : 315,290,286,554.62 = 68,637,857,977.11 : x
  2. Step 2: Convert to fraction form
    210,166,484,648.79/315,290,286,554.62 = 68,637,857,977.11/x
  3. Step 3: Cross multiply
    210,166,484,648.79x = 315,290,286,554.62 × 68,637,857,977.11
  4. Step 4: Simplify right side
    210,166,484,648.79x = 21,640,849,910,098,324,094,976
  5. Step 5: Solve for x
    x = 21,640,849,910,098,324,094,976/210,166,484,648.79
  6. Step 6: Final answer
    x = 102,970,033,239.42

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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.