Home / 499,310,907.52-689,100,917.52-287,625,053.92

Finding the Fourth Proportional to 499,310,907.52, 689,100,917.52 and 287,625,053.92

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Solution

The fourth proportional to 499,310,907.52, 689,100,917.52 and 287,625,053.92 is: 396,952,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,310,907.52 : 689,100,917.52 = 287,625,053.92 : x
  2. Step 2: Convert to fraction form
    499,310,907.52/689,100,917.52 = 287,625,053.92/x
  3. Step 3: Cross multiply
    499,310,907.52x = 689,100,917.52 × 287,625,053.92
  4. Step 4: Simplify right side
    499,310,907.52x = 198,202,688,558,011,488
  5. Step 5: Solve for x
    x = 198,202,688,558,011,488/499,310,907.52
  6. Step 6: Final answer
    x = 396,952,451.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.