Home / 358,709,542.80-538,064,314.20-271,978,371.60

Finding the Fourth Proportional to 358,709,542.80, 538,064,314.20 and 271,978,371.60

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Solution

The fourth proportional to 358,709,542.80, 538,064,314.20 and 271,978,371.60 is: 407,967,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,709,542.80 : 538,064,314.20 = 271,978,371.60 : x
  2. Step 2: Convert to fraction form
    358,709,542.80/538,064,314.20 = 271,978,371.60/x
  3. Step 3: Cross multiply
    358,709,542.80x = 538,064,314.20 × 271,978,371.60
  4. Step 4: Simplify right side
    358,709,542.80x = 146,341,855,992,186,784
  5. Step 5: Solve for x
    x = 146,341,855,992,186,784/358,709,542.80
  6. Step 6: Final answer
    x = 407,967,557.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.