Home / 419,909,801.10-629,864,701.65-247,297,764.30

Finding the Fourth Proportional to 419,909,801.10, 629,864,701.65 and 247,297,764.30

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Solution

The fourth proportional to 419,909,801.10, 629,864,701.65 and 247,297,764.30 is: 370,946,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,909,801.10 : 629,864,701.65 = 247,297,764.30 : x
  2. Step 2: Convert to fraction form
    419,909,801.10/629,864,701.65 = 247,297,764.30/x
  3. Step 3: Cross multiply
    419,909,801.10x = 629,864,701.65 × 247,297,764.30
  4. Step 4: Simplify right side
    419,909,801.10x = 155,764,132,529,531,520
  5. Step 5: Solve for x
    x = 155,764,132,529,531,520/419,909,801.10
  6. Step 6: Final answer
    x = 370,946,646.45

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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.