Home / 3,168,190,127.60-4,753,985,802.60-1,328,128,809.20

Finding the Fourth Proportional to 3,168,190,127.60, 4,753,985,802.60 and 1,328,128,809.20

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Solution

The fourth proportional to 3,168,190,127.60, 4,753,985,802.60 and 1,328,128,809.20 is: 1,992,906,122.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168,190,127.60 : 4,753,985,802.60 = 1,328,128,809.20 : x
  2. Step 2: Convert to fraction form
    3,168,190,127.60/4,753,985,802.60 = 1,328,128,809.20/x
  3. Step 3: Cross multiply
    3,168,190,127.60x = 4,753,985,802.60 × 1,328,128,809.20
  4. Step 4: Simplify right side
    3,168,190,127.60x = 6,313,905,502,960,844,800
  5. Step 5: Solve for x
    x = 6,313,905,502,960,844,800/3,168,190,127.60
  6. Step 6: Final answer
    x = 1,992,906,122.63

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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.