Home / 401,130,549.52-553,356,431.34-261,982,762

Finding the Fourth Proportional to 401,130,549.52, 553,356,431.34 and 261,982,762

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Solution

The fourth proportional to 401,130,549.52, 553,356,431.34 and 261,982,762 is: 361,403,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,130,549.52 : 553,356,431.34 = 261,982,762 : x
  2. Step 2: Convert to fraction form
    401,130,549.52/553,356,431.34 = 261,982,762/x
  3. Step 3: Cross multiply
    401,130,549.52x = 553,356,431.34 × 261,982,762
  4. Step 4: Simplify right side
    401,130,549.52x = 144,969,846,252,916,576
  5. Step 5: Solve for x
    x = 144,969,846,252,916,576/401,130,549.52
  6. Step 6: Final answer
    x = 361,403,155.22

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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.