Home / 133,243,801.20-199,865,701.80-42,376,575.60

Finding the Fourth Proportional to 133,243,801.20, 199,865,701.80 and 42,376,575.60

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Solution

The fourth proportional to 133,243,801.20, 199,865,701.80 and 42,376,575.60 is: 63,564,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,243,801.20 : 199,865,701.80 = 42,376,575.60 : x
  2. Step 2: Convert to fraction form
    133,243,801.20/199,865,701.80 = 42,376,575.60/x
  3. Step 3: Cross multiply
    133,243,801.20x = 199,865,701.80 × 42,376,575.60
  4. Step 4: Simplify right side
    133,243,801.20x = 8,469,624,022,174,757
  5. Step 5: Solve for x
    x = 8,469,624,022,174,757/133,243,801.20
  6. Step 6: Final answer
    x = 63,564,863.40

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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.