Home / 306,918,977-460,378,760.34-85,581,476.60

Finding the Fourth Proportional to 306,918,977, 460,378,760.34 and 85,581,476.60

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Solution

The fourth proportional to 306,918,977, 460,378,760.34 and 85,581,476.60 is: 128,372,297.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,918,977 : 460,378,760.34 = 85,581,476.60 : x
  2. Step 2: Convert to fraction form
    306,918,977/460,378,760.34 = 85,581,476.60/x
  3. Step 3: Cross multiply
    306,918,977x = 460,378,760.34 × 85,581,476.60
  4. Step 4: Simplify right side
    306,918,977x = 39,399,894,105,174,712
  5. Step 5: Solve for x
    x = 39,399,894,105,174,712/306,918,977
  6. Step 6: Final answer
    x = 128,372,297.11

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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.