Home / 358,728,141.80-538,092,212.70-328,117,140.20

Finding the Fourth Proportional to 358,728,141.80, 538,092,212.70 and 328,117,140.20

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Solution

The fourth proportional to 358,728,141.80, 538,092,212.70 and 328,117,140.20 is: 492,175,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728,141.80 : 538,092,212.70 = 328,117,140.20 : x
  2. Step 2: Convert to fraction form
    358,728,141.80/538,092,212.70 = 328,117,140.20/x
  3. Step 3: Cross multiply
    358,728,141.80x = 538,092,212.70 × 328,117,140.20
  4. Step 4: Simplify right side
    358,728,141.80x = 176,557,277,995,014,144
  5. Step 5: Solve for x
    x = 176,557,277,995,014,144/358,728,141.80
  6. Step 6: Final answer
    x = 492,175,710.30

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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.