Home / 641,574,069.12-885,348,532.80-348,212,338.56

Finding the Fourth Proportional to 641,574,069.12, 885,348,532.80 and 348,212,338.56

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Solution

The fourth proportional to 641,574,069.12, 885,348,532.80 and 348,212,338.56 is: 480,520,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,574,069.12 : 885,348,532.80 = 348,212,338.56 : x
  2. Step 2: Convert to fraction form
    641,574,069.12/885,348,532.80 = 348,212,338.56/x
  3. Step 3: Cross multiply
    641,574,069.12x = 885,348,532.80 × 348,212,338.56
  4. Step 4: Simplify right side
    641,574,069.12x = 308,289,283,046,952,832
  5. Step 5: Solve for x
    x = 308,289,283,046,952,832/641,574,069.12
  6. Step 6: Final answer
    x = 480,520,173.56

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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.