Home / 121,318,190.40-181,977,285.60-120,562,363.20

Finding the Fourth Proportional to 121,318,190.40, 181,977,285.60 and 120,562,363.20

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Solution

The fourth proportional to 121,318,190.40, 181,977,285.60 and 120,562,363.20 is: 180,843,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,318,190.40 : 181,977,285.60 = 120,562,363.20 : x
  2. Step 2: Convert to fraction form
    121,318,190.40/181,977,285.60 = 120,562,363.20/x
  3. Step 3: Cross multiply
    121,318,190.40x = 181,977,285.60 × 120,562,363.20
  4. Step 4: Simplify right side
    121,318,190.40x = 21,939,611,600,657,328
  5. Step 5: Solve for x
    x = 21,939,611,600,657,328/121,318,190.40
  6. Step 6: Final answer
    x = 180,843,544.80

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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.