Home / 467,040,387-644,408,807.31-278,832,051.30

Finding the Fourth Proportional to 467,040,387, 644,408,807.31 and 278,832,051.30

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Solution

The fourth proportional to 467,040,387, 644,408,807.31 and 278,832,051.30 is: 384,724,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,040,387 : 644,408,807.31 = 278,832,051.30 : x
  2. Step 2: Convert to fraction form
    467,040,387/644,408,807.31 = 278,832,051.30/x
  3. Step 3: Cross multiply
    467,040,387x = 644,408,807.31 × 278,832,051.30
  4. Step 4: Simplify right side
    467,040,387x = 179,681,829,618,033,728
  5. Step 5: Solve for x
    x = 179,681,829,618,033,728/467,040,387
  6. Step 6: Final answer
    x = 384,724,393.48

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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.