Home / 89,150,829.40-133,726,244.10-78,628,297.60

Finding the Fourth Proportional to 89,150,829.40, 133,726,244.10 and 78,628,297.60

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Solution

The fourth proportional to 89,150,829.40, 133,726,244.10 and 78,628,297.60 is: 117,942,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,150,829.40 : 133,726,244.10 = 78,628,297.60 : x
  2. Step 2: Convert to fraction form
    89,150,829.40/133,726,244.10 = 78,628,297.60/x
  3. Step 3: Cross multiply
    89,150,829.40x = 133,726,244.10 × 78,628,297.60
  4. Step 4: Simplify right side
    89,150,829.40x = 10,514,666,918,025,042
  5. Step 5: Solve for x
    x = 10,514,666,918,025,042/89,150,829.40
  6. Step 6: Final answer
    x = 117,942,446.40

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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.