Home / 223,064,642.72-307,815,712.48-123,942,000.80

Finding the Fourth Proportional to 223,064,642.72, 307,815,712.48 and 123,942,000.80

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Solution

The fourth proportional to 223,064,642.72, 307,815,712.48 and 123,942,000.80 is: 171,032,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,064,642.72 : 307,815,712.48 = 123,942,000.80 : x
  2. Step 2: Convert to fraction form
    223,064,642.72/307,815,712.48 = 123,942,000.80/x
  3. Step 3: Cross multiply
    223,064,642.72x = 307,815,712.48 × 123,942,000.80
  4. Step 4: Simplify right side
    223,064,642.72x = 38,151,295,282,448,728
  5. Step 5: Solve for x
    x = 38,151,295,282,448,728/223,064,642.72
  6. Step 6: Final answer
    x = 171,032,463.13

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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.