Home / 291,155,410.77-401,846,364.81-172,073,140.50

Finding the Fourth Proportional to 291,155,410.77, 401,846,364.81 and 172,073,140.50

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Solution

The fourth proportional to 291,155,410.77, 401,846,364.81 and 172,073,140.50 is: 237,491,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,155,410.77 : 401,846,364.81 = 172,073,140.50 : x
  2. Step 2: Convert to fraction form
    291,155,410.77/401,846,364.81 = 172,073,140.50/x
  3. Step 3: Cross multiply
    291,155,410.77x = 401,846,364.81 × 172,073,140.50
  4. Step 4: Simplify right side
    291,155,410.77x = 69,146,965,991,365,384
  5. Step 5: Solve for x
    x = 69,146,965,991,365,384/291,155,410.77
  6. Step 6: Final answer
    x = 237,491,605.63

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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.