Home / 291,331,123.20-436,996,684.80-75,920,371.20

Finding the Fourth Proportional to 291,331,123.20, 436,996,684.80 and 75,920,371.20

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Solution

The fourth proportional to 291,331,123.20, 436,996,684.80 and 75,920,371.20 is: 113,880,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,331,123.20 : 436,996,684.80 = 75,920,371.20 : x
  2. Step 2: Convert to fraction form
    291,331,123.20/436,996,684.80 = 75,920,371.20/x
  3. Step 3: Cross multiply
    291,331,123.20x = 436,996,684.80 × 75,920,371.20
  4. Step 4: Simplify right side
    291,331,123.20x = 33,176,950,523,185,400
  5. Step 5: Solve for x
    x = 33,176,950,523,185,400/291,331,123.20
  6. Step 6: Final answer
    x = 113,880,556.80

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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.