Home / 976,859,969.60-1,464,864,801.60-321,557,787.20

Finding the Fourth Proportional to 976,859,969.60, 1,464,864,801.60 and 321,557,787.20

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Solution

The fourth proportional to 976,859,969.60, 1,464,864,801.60 and 321,557,787.20 is: 482,196,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,859,969.60 : 1,464,864,801.60 = 321,557,787.20 : x
  2. Step 2: Convert to fraction form
    976,859,969.60/1,464,864,801.60 = 321,557,787.20/x
  3. Step 3: Cross multiply
    976,859,969.60x = 1,464,864,801.60 × 321,557,787.20
  4. Step 4: Simplify right side
    976,859,969.60x = 471,038,684,149,662,976
  5. Step 5: Solve for x
    x = 471,038,684,149,662,976/976,859,969.60
  6. Step 6: Final answer
    x = 482,196,731.17

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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.