Home / 132,086,890.40-198,130,335.60-70,864,887.20

Finding the Fourth Proportional to 132,086,890.40, 198,130,335.60 and 70,864,887.20

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Solution

The fourth proportional to 132,086,890.40, 198,130,335.60 and 70,864,887.20 is: 106,297,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,086,890.40 : 198,130,335.60 = 70,864,887.20 : x
  2. Step 2: Convert to fraction form
    132,086,890.40/198,130,335.60 = 70,864,887.20/x
  3. Step 3: Cross multiply
    132,086,890.40x = 198,130,335.60 × 70,864,887.20
  4. Step 4: Simplify right side
    132,086,890.40x = 14,040,483,883,192,144
  5. Step 5: Solve for x
    x = 14,040,483,883,192,144/132,086,890.40
  6. Step 6: Final answer
    x = 106,297,330.80

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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.