Home / 89,029,840.80-133,544,761.20-80,243,349.60

Finding the Fourth Proportional to 89,029,840.80, 133,544,761.20 and 80,243,349.60

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Solution

The fourth proportional to 89,029,840.80, 133,544,761.20 and 80,243,349.60 is: 120,365,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,029,840.80 : 133,544,761.20 = 80,243,349.60 : x
  2. Step 2: Convert to fraction form
    89,029,840.80/133,544,761.20 = 80,243,349.60/x
  3. Step 3: Cross multiply
    89,029,840.80x = 133,544,761.20 × 80,243,349.60
  4. Step 4: Simplify right side
    89,029,840.80x = 10,716,078,960,220,114
  5. Step 5: Solve for x
    x = 10,716,078,960,220,114/89,029,840.80
  6. Step 6: Final answer
    x = 120,365,024.40

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1.5x scale

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.