Home / 679,959,280.20-1,019,938,920.30-220,227,385.80

Finding the Fourth Proportional to 679,959,280.20, 1,019,938,920.30 and 220,227,385.80

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Solution

The fourth proportional to 679,959,280.20, 1,019,938,920.30 and 220,227,385.80 is: 330,341,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,959,280.20 : 1,019,938,920.30 = 220,227,385.80 : x
  2. Step 2: Convert to fraction form
    679,959,280.20/1,019,938,920.30 = 220,227,385.80/x
  3. Step 3: Cross multiply
    679,959,280.20x = 1,019,938,920.30 × 220,227,385.80
  4. Step 4: Simplify right side
    679,959,280.20x = 224,618,482,093,343,552
  5. Step 5: Solve for x
    x = 224,618,482,093,343,552/679,959,280.20
  6. Step 6: Final answer
    x = 330,341,078.70

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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.