Home / 358,725,346.80-538,088,020.20-328,114,345.20

Finding the Fourth Proportional to 358,725,346.80, 538,088,020.20 and 328,114,345.20

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Solution

The fourth proportional to 358,725,346.80, 538,088,020.20 and 328,114,345.20 is: 492,171,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,725,346.80 : 538,088,020.20 = 328,114,345.20 : x
  2. Step 2: Convert to fraction form
    358,725,346.80/538,088,020.20 = 328,114,345.20/x
  3. Step 3: Cross multiply
    358,725,346.80x = 538,088,020.20 × 328,114,345.20
  4. Step 4: Simplify right side
    358,725,346.80x = 176,554,398,407,887,392
  5. Step 5: Solve for x
    x = 176,554,398,407,887,392/358,725,346.80
  6. Step 6: Final answer
    x = 492,171,517.80

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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.