Home / 858,390,952.20-1,287,586,428.30-313,150,273.80

Finding the Fourth Proportional to 858,390,952.20, 1,287,586,428.30 and 313,150,273.80

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Solution

The fourth proportional to 858,390,952.20, 1,287,586,428.30 and 313,150,273.80 is: 469,725,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,390,952.20 : 1,287,586,428.30 = 313,150,273.80 : x
  2. Step 2: Convert to fraction form
    858,390,952.20/1,287,586,428.30 = 313,150,273.80/x
  3. Step 3: Cross multiply
    858,390,952.20x = 1,287,586,428.30 × 313,150,273.80
  4. Step 4: Simplify right side
    858,390,952.20x = 403,208,042,563,309,056
  5. Step 5: Solve for x
    x = 403,208,042,563,309,056/858,390,952.20
  6. Step 6: Final answer
    x = 469,725,410.70

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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.