Home / 628,294,664.52-867,107,880.29-469,248,665.95

Finding the Fourth Proportional to 628,294,664.52, 867,107,880.29 and 469,248,665.95

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Solution

The fourth proportional to 628,294,664.52, 867,107,880.29 and 469,248,665.95 is: 647,608,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,294,664.52 : 867,107,880.29 = 469,248,665.95 : x
  2. Step 2: Convert to fraction form
    628,294,664.52/867,107,880.29 = 469,248,665.95/x
  3. Step 3: Cross multiply
    628,294,664.52x = 867,107,880.29 × 469,248,665.95
  4. Step 4: Simplify right side
    628,294,664.52x = 406,889,216,056,300,736
  5. Step 5: Solve for x
    x = 406,889,216,056,300,736/628,294,664.52
  6. Step 6: Final answer
    x = 647,608,899.19

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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.