Home / 400,666,380.84-553,438,271.04-331,331,832.36

Finding the Fourth Proportional to 400,666,380.84, 553,438,271.04 and 331,331,832.36

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Solution

The fourth proportional to 400,666,380.84, 553,438,271.04 and 331,331,832.36 is: 457,666,840.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,666,380.84 : 553,438,271.04 = 331,331,832.36 : x
  2. Step 2: Convert to fraction form
    400,666,380.84/553,438,271.04 = 331,331,832.36/x
  3. Step 3: Cross multiply
    400,666,380.84x = 553,438,271.04 × 331,331,832.36
  4. Step 4: Simplify right side
    400,666,380.84x = 183,371,716,441,833,504
  5. Step 5: Solve for x
    x = 183,371,716,441,833,504/400,666,380.84
  6. Step 6: Final answer
    x = 457,666,840.07

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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.