Home / 291,187,363.61-401,848,477.87-172,211,943.90

Finding the Fourth Proportional to 291,187,363.61, 401,848,477.87 and 172,211,943.90

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Solution

The fourth proportional to 291,187,363.61, 401,848,477.87 and 172,211,943.90 is: 237,658,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,187,363.61 : 401,848,477.87 = 172,211,943.90 : x
  2. Step 2: Convert to fraction form
    291,187,363.61/401,848,477.87 = 172,211,943.90/x
  3. Step 3: Cross multiply
    291,187,363.61x = 401,848,477.87 × 172,211,943.90
  4. Step 4: Simplify right side
    291,187,363.61x = 69,203,107,527,822,928
  5. Step 5: Solve for x
    x = 69,203,107,527,822,928/291,187,363.61
  6. Step 6: Final answer
    x = 237,658,347.09

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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.