Home / 91,033,567.40-136,550,351.10-80,511,035.60

Finding the Fourth Proportional to 91,033,567.40, 136,550,351.10 and 80,511,035.60

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Solution

The fourth proportional to 91,033,567.40, 136,550,351.10 and 80,511,035.60 is: 120,766,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,033,567.40 : 136,550,351.10 = 80,511,035.60 : x
  2. Step 2: Convert to fraction form
    91,033,567.40/136,550,351.10 = 80,511,035.60/x
  3. Step 3: Cross multiply
    91,033,567.40x = 136,550,351.10 × 80,511,035.60
  4. Step 4: Simplify right side
    91,033,567.40x = 10,993,810,178,604,598
  5. Step 5: Solve for x
    x = 10,993,810,178,604,598/91,033,567.40
  6. Step 6: Final answer
    x = 120,766,553.40

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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.