Home / 205,328,534.40-307,992,801.60-203,912,956.80

Finding the Fourth Proportional to 205,328,534.40, 307,992,801.60 and 203,912,956.80

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Solution

The fourth proportional to 205,328,534.40, 307,992,801.60 and 203,912,956.80 is: 305,869,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,328,534.40 : 307,992,801.60 = 203,912,956.80 : x
  2. Step 2: Convert to fraction form
    205,328,534.40/307,992,801.60 = 203,912,956.80/x
  3. Step 3: Cross multiply
    205,328,534.40x = 307,992,801.60 × 203,912,956.80
  4. Step 4: Simplify right side
    205,328,534.40x = 62,803,722,847,371,776
  5. Step 5: Solve for x
    x = 62,803,722,847,371,776/205,328,534.40
  6. Step 6: Final answer
    x = 305,869,435.20

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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.