Home / 1,684,084,849.40-2,323,919,112.54-979,186,821.68

Finding the Fourth Proportional to 1,684,084,849.40, 2,323,919,112.54 and 979,186,821.68

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Solution

The fourth proportional to 1,684,084,849.40, 2,323,919,112.54 and 979,186,821.68 is: 1,351,209,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684,084,849.40 : 2,323,919,112.54 = 979,186,821.68 : x
  2. Step 2: Convert to fraction form
    1,684,084,849.40/2,323,919,112.54 = 979,186,821.68/x
  3. Step 3: Cross multiply
    1,684,084,849.40x = 2,323,919,112.54 × 979,186,821.68
  4. Step 4: Simplify right side
    1,684,084,849.40x = 2,275,550,969,649,448,704
  5. Step 5: Solve for x
    x = 2,275,550,969,649,448,704/1,684,084,849.40
  6. Step 6: Final answer
    x = 1,351,209,216.36

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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.