Home / 991,096,930.80-1,486,327,124.50-326,961,659.52

Finding the Fourth Proportional to 991,096,930.80, 1,486,327,124.50 and 326,961,659.52

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Solution

The fourth proportional to 991,096,930.80, 1,486,327,124.50 and 326,961,659.52 is: 490,337,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,096,930.80 : 1,486,327,124.50 = 326,961,659.52 : x
  2. Step 2: Convert to fraction form
    991,096,930.80/1,486,327,124.50 = 326,961,659.52/x
  3. Step 3: Cross multiply
    991,096,930.80x = 1,486,327,124.50 × 326,961,659.52
  4. Step 4: Simplify right side
    991,096,930.80x = 485,971,983,216,109,632
  5. Step 5: Solve for x
    x = 485,971,983,216,109,632/991,096,930.80
  6. Step 6: Final answer
    x = 490,337,491.84

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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.