Home / 511,068,972.80-766,603,459.20-220,075,500.80

Finding the Fourth Proportional to 511,068,972.80, 766,603,459.20 and 220,075,500.80

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Solution

The fourth proportional to 511,068,972.80, 766,603,459.20 and 220,075,500.80 is: 330,113,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,068,972.80 : 766,603,459.20 = 220,075,500.80 : x
  2. Step 2: Convert to fraction form
    511,068,972.80/766,603,459.20 = 220,075,500.80/x
  3. Step 3: Cross multiply
    511,068,972.80x = 766,603,459.20 × 220,075,500.80
  4. Step 4: Simplify right side
    511,068,972.80x = 168,710,640,198,452,384
  5. Step 5: Solve for x
    x = 168,710,640,198,452,384/511,068,972.80
  6. Step 6: Final answer
    x = 330,113,251.20

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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.