Home / 358,728,140.80-538,092,211.20-328,117,139.20

Finding the Fourth Proportional to 358,728,140.80, 538,092,211.20 and 328,117,139.20

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Solution

The fourth proportional to 358,728,140.80, 538,092,211.20 and 328,117,139.20 is: 492,175,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728,140.80 : 538,092,211.20 = 328,117,139.20 : x
  2. Step 2: Convert to fraction form
    358,728,140.80/538,092,211.20 = 328,117,139.20/x
  3. Step 3: Cross multiply
    358,728,140.80x = 538,092,211.20 × 328,117,139.20
  4. Step 4: Simplify right side
    358,728,140.80x = 176,557,276,964,746,208
  5. Step 5: Solve for x
    x = 176,557,276,964,746,208/358,728,140.80
  6. Step 6: Final answer
    x = 492,175,708.80

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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.