Home / 220,879,406.80-331,315,999.80-99,710,664.40

Finding the Fourth Proportional to 220,879,406.80, 331,315,999.80 and 99,710,664.40

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Solution

The fourth proportional to 220,879,406.80, 331,315,999.80 and 99,710,664.40 is: 149,564,592.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,879,406.80 : 331,315,999.80 = 99,710,664.40 : x
  2. Step 2: Convert to fraction form
    220,879,406.80/331,315,999.80 = 99,710,664.40/x
  3. Step 3: Cross multiply
    220,879,406.80x = 331,315,999.80 × 99,710,664.40
  4. Step 4: Simplify right side
    220,879,406.80x = 33,035,738,466,408,272
  5. Step 5: Solve for x
    x = 33,035,738,466,408,272/220,879,406.80
  6. Step 6: Final answer
    x = 149,564,592.49

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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.