Home / 401,130,552.39-553,356,435.31-261,982,764.87

Finding the Fourth Proportional to 401,130,552.39, 553,356,435.31 and 261,982,764.87

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Solution

The fourth proportional to 401,130,552.39, 553,356,435.31 and 261,982,764.87 is: 361,403,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,130,552.39 : 553,356,435.31 = 261,982,764.87 : x
  2. Step 2: Convert to fraction form
    401,130,552.39/553,356,435.31 = 261,982,764.87/x
  3. Step 3: Cross multiply
    401,130,552.39x = 553,356,435.31 × 261,982,764.87
  4. Step 4: Simplify right side
    401,130,552.39x = 144,969,848,880,466,144
  5. Step 5: Solve for x
    x = 144,969,848,880,466,144/401,130,552.39
  6. Step 6: Final answer
    x = 361,403,159.19

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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.