Home / 429,031,896.75-643,553,823.83-122,324,009.63

Finding the Fourth Proportional to 429,031,896.75, 643,553,823.83 and 122,324,009.63

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Solution

The fourth proportional to 429,031,896.75, 643,553,823.83 and 122,324,009.63 is: 183,487,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,031,896.75 : 643,553,823.83 = 122,324,009.63 : x
  2. Step 2: Convert to fraction form
    429,031,896.75/643,553,823.83 = 122,324,009.63/x
  3. Step 3: Cross multiply
    429,031,896.75x = 643,553,823.83 × 122,324,009.63
  4. Step 4: Simplify right side
    429,031,896.75x = 78,722,084,139,774,864
  5. Step 5: Solve for x
    x = 78,722,084,139,774,864/429,031,896.75
  6. Step 6: Final answer
    x = 183,487,719.06

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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.