Home / 145,453,037.60-200,729,469.40-79,377,813.56

Finding the Fourth Proportional to 145,453,037.60, 200,729,469.40 and 79,377,813.56

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Solution

The fourth proportional to 145,453,037.60, 200,729,469.40 and 79,377,813.56 is: 109,543,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,453,037.60 : 200,729,469.40 = 79,377,813.56 : x
  2. Step 2: Convert to fraction form
    145,453,037.60/200,729,469.40 = 79,377,813.56/x
  3. Step 3: Cross multiply
    145,453,037.60x = 200,729,469.40 × 79,377,813.56
  4. Step 4: Simplify right side
    145,453,037.60x = 15,933,466,398,030,926
  5. Step 5: Solve for x
    x = 15,933,466,398,030,926/145,453,037.60
  6. Step 6: Final answer
    x = 109,543,717.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.