Home / 692,029,504.31-954,897,983.19-420,308,578.01

Finding the Fourth Proportional to 692,029,504.31, 954,897,983.19 and 420,308,578.01

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Solution

The fourth proportional to 692,029,504.31, 954,897,983.19 and 420,308,578.01 is: 579,963,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,029,504.31 : 954,897,983.19 = 420,308,578.01 : x
  2. Step 2: Convert to fraction form
    692,029,504.31/954,897,983.19 = 420,308,578.01/x
  3. Step 3: Cross multiply
    692,029,504.31x = 954,897,983.19 × 420,308,578.01
  4. Step 4: Simplify right side
    692,029,504.31x = 401,351,813,461,593,024
  5. Step 5: Solve for x
    x = 401,351,813,461,593,024/692,029,504.31
  6. Step 6: Final answer
    x = 579,963,442.26

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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.