Home / 603,614,734.80-905,422,102.20-215,875,381.20

Finding the Fourth Proportional to 603,614,734.80, 905,422,102.20 and 215,875,381.20

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Solution

The fourth proportional to 603,614,734.80, 905,422,102.20 and 215,875,381.20 is: 323,813,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,614,734.80 : 905,422,102.20 = 215,875,381.20 : x
  2. Step 2: Convert to fraction form
    603,614,734.80/905,422,102.20 = 215,875,381.20/x
  3. Step 3: Cross multiply
    603,614,734.80x = 905,422,102.20 × 215,875,381.20
  4. Step 4: Simplify right side
    603,614,734.80x = 195,458,341,459,330,368
  5. Step 5: Solve for x
    x = 195,458,341,459,330,368/603,614,734.80
  6. Step 6: Final answer
    x = 323,813,071.80

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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.