Home / 215,485,386.30-323,228,083.72-51,723,142.84

Finding the Fourth Proportional to 215,485,386.30, 323,228,083.72 and 51,723,142.84

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Solution

The fourth proportional to 215,485,386.30, 323,228,083.72 and 51,723,142.84 is: 77,584,715.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,485,386.30 : 323,228,083.72 = 51,723,142.84 : x
  2. Step 2: Convert to fraction form
    215,485,386.30/323,228,083.72 = 51,723,142.84/x
  3. Step 3: Cross multiply
    215,485,386.30x = 323,228,083.72 × 51,723,142.84
  4. Step 4: Simplify right side
    215,485,386.30x = 16,718,372,345,429,924
  5. Step 5: Solve for x
    x = 16,718,372,345,429,924/215,485,386.30
  6. Step 6: Final answer
    x = 77,584,715.29

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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.