Home / 547,521,513.48-821,385,852.30-220,022,520.84

Finding the Fourth Proportional to 547,521,513.48, 821,385,852.30 and 220,022,520.84

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Solution

The fourth proportional to 547,521,513.48, 821,385,852.30 and 220,022,520.84 is: 330,075,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,521,513.48 : 821,385,852.30 = 220,022,520.84 : x
  2. Step 2: Convert to fraction form
    547,521,513.48/821,385,852.30 = 220,022,520.84/x
  3. Step 3: Cross multiply
    547,521,513.48x = 821,385,852.30 × 220,022,520.84
  4. Step 4: Simplify right side
    547,521,513.48x = 180,723,385,805,357,920
  5. Step 5: Solve for x
    x = 180,723,385,805,357,920/547,521,513.48
  6. Step 6: Final answer
    x = 330,075,405.91

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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.