Home / 358,725,348.30-538,088,022.45-328,114,346.70

Finding the Fourth Proportional to 358,725,348.30, 538,088,022.45 and 328,114,346.70

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Solution

The fourth proportional to 358,725,348.30, 538,088,022.45 and 328,114,346.70 is: 492,171,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,725,348.30 : 538,088,022.45 = 328,114,346.70 : x
  2. Step 2: Convert to fraction form
    358,725,348.30/538,088,022.45 = 328,114,346.70/x
  3. Step 3: Cross multiply
    358,725,348.30x = 538,088,022.45 × 328,114,346.70
  4. Step 4: Simplify right side
    358,725,348.30x = 176,554,399,953,276,704
  5. Step 5: Solve for x
    x = 176,554,399,953,276,704/358,725,348.30
  6. Step 6: Final answer
    x = 492,171,520.05

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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.