Home / 2,139,418,946.80-3,209,128,420.20-1,955,752,937.20

Finding the Fourth Proportional to 2,139,418,946.80, 3,209,128,420.20 and 1,955,752,937.20

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Solution

The fourth proportional to 2,139,418,946.80, 3,209,128,420.20 and 1,955,752,937.20 is: 2,933,629,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,418,946.80 : 3,209,128,420.20 = 1,955,752,937.20 : x
  2. Step 2: Convert to fraction form
    2,139,418,946.80/3,209,128,420.20 = 1,955,752,937.20/x
  3. Step 3: Cross multiply
    2,139,418,946.80x = 3,209,128,420.20 × 1,955,752,937.20
  4. Step 4: Simplify right side
    2,139,418,946.80x = 6,276,262,333,658,145,792
  5. Step 5: Solve for x
    x = 6,276,262,333,658,145,792/2,139,418,946.80
  6. Step 6: Final answer
    x = 2,933,629,405.80

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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.