Home / 679,961,124.20-1,019,941,686.30-219,945,794.60

Finding the Fourth Proportional to 679,961,124.20, 1,019,941,686.30 and 219,945,794.60

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Solution

The fourth proportional to 679,961,124.20, 1,019,941,686.30 and 219,945,794.60 is: 329,918,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,961,124.20 : 1,019,941,686.30 = 219,945,794.60 : x
  2. Step 2: Convert to fraction form
    679,961,124.20/1,019,941,686.30 = 219,945,794.60/x
  3. Step 3: Cross multiply
    679,961,124.20x = 1,019,941,686.30 × 219,945,794.60
  4. Step 4: Simplify right side
    679,961,124.20x = 224,331,884,638,917,408
  5. Step 5: Solve for x
    x = 224,331,884,638,917,408/679,961,124.20
  6. Step 6: Final answer
    x = 329,918,691.90

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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.