Home / 545,912,911.20-818,869,366.80-303,575,815.20

Finding the Fourth Proportional to 545,912,911.20, 818,869,366.80 and 303,575,815.20

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Solution

The fourth proportional to 545,912,911.20, 818,869,366.80 and 303,575,815.20 is: 455,363,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,912,911.20 : 818,869,366.80 = 303,575,815.20 : x
  2. Step 2: Convert to fraction form
    545,912,911.20/818,869,366.80 = 303,575,815.20/x
  3. Step 3: Cross multiply
    545,912,911.20x = 818,869,366.80 × 303,575,815.20
  4. Step 4: Simplify right side
    545,912,911.20x = 248,588,935,568,617,792
  5. Step 5: Solve for x
    x = 248,588,935,568,617,792/545,912,911.20
  6. Step 6: Final answer
    x = 455,363,722.80

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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.