Home / 921,026,630.40-1,381,388,618.16-330,694,664.64

Finding the Fourth Proportional to 921,026,630.40, 1,381,388,618.16 and 330,694,664.64

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Solution

The fourth proportional to 921,026,630.40, 1,381,388,618.16 and 330,694,664.64 is: 495,987,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,026,630.40 : 1,381,388,618.16 = 330,694,664.64 : x
  2. Step 2: Convert to fraction form
    921,026,630.40/1,381,388,618.16 = 330,694,664.64/x
  3. Step 3: Cross multiply
    921,026,630.40x = 1,381,388,618.16 × 330,694,664.64
  4. Step 4: Simplify right side
    921,026,630.40x = 456,817,845,819,934,208
  5. Step 5: Solve for x
    x = 456,817,845,819,934,208/921,026,630.40
  6. Step 6: Final answer
    x = 495,987,662.83

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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.