Home / 515,278,303.73-711,331,037.93-317,209,578.73

Finding the Fourth Proportional to 515,278,303.73, 711,331,037.93 and 317,209,578.73

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Solution

The fourth proportional to 515,278,303.73, 711,331,037.93 and 317,209,578.73 is: 437,901,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,278,303.73 : 711,331,037.93 = 317,209,578.73 : x
  2. Step 2: Convert to fraction form
    515,278,303.73/711,331,037.93 = 317,209,578.73/x
  3. Step 3: Cross multiply
    515,278,303.73x = 711,331,037.93 × 317,209,578.73
  4. Step 4: Simplify right side
    515,278,303.73x = 225,641,018,879,348,960
  5. Step 5: Solve for x
    x = 225,641,018,879,348,960/515,278,303.73
  6. Step 6: Final answer
    x = 437,901,260.83

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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.