Home / 129,346,799.70-194,020,199.55-83,430,297.30

Finding the Fourth Proportional to 129,346,799.70, 194,020,199.55 and 83,430,297.30

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Solution

The fourth proportional to 129,346,799.70, 194,020,199.55 and 83,430,297.30 is: 125,145,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,346,799.70 : 194,020,199.55 = 83,430,297.30 : x
  2. Step 2: Convert to fraction form
    129,346,799.70/194,020,199.55 = 83,430,297.30/x
  3. Step 3: Cross multiply
    129,346,799.70x = 194,020,199.55 × 83,430,297.30
  4. Step 4: Simplify right side
    129,346,799.70x = 16,187,162,930,661,826
  5. Step 5: Solve for x
    x = 16,187,162,930,661,826/129,346,799.70
  6. Step 6: Final answer
    x = 125,145,445.95

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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.