Home / 1,919,128,525.20-2,878,692,766.20-465,105,949.20

Finding the Fourth Proportional to 1,919,128,525.20, 2,878,692,766.20 and 465,105,949.20

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Solution

The fourth proportional to 1,919,128,525.20, 2,878,692,766.20 and 465,105,949.20 is: 697,658,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,128,525.20 : 2,878,692,766.20 = 465,105,949.20 : x
  2. Step 2: Convert to fraction form
    1,919,128,525.20/2,878,692,766.20 = 465,105,949.20/x
  3. Step 3: Cross multiply
    1,919,128,525.20x = 2,878,692,766.20 × 465,105,949.20
  4. Step 4: Simplify right side
    1,919,128,525.20x = 1,338,897,131,478,624,512
  5. Step 5: Solve for x
    x = 1,338,897,131,478,624,512/1,919,128,525.20
  6. Step 6: Final answer
    x = 697,658,918.57

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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.