Home / 679,959,175.20-1,019,938,762.80-220,227,280.80

Finding the Fourth Proportional to 679,959,175.20, 1,019,938,762.80 and 220,227,280.80

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Solution

The fourth proportional to 679,959,175.20, 1,019,938,762.80 and 220,227,280.80 is: 330,340,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,959,175.20 : 1,019,938,762.80 = 220,227,280.80 : x
  2. Step 2: Convert to fraction form
    679,959,175.20/1,019,938,762.80 = 220,227,280.80/x
  3. Step 3: Cross multiply
    679,959,175.20x = 1,019,938,762.80 × 220,227,280.80
  4. Step 4: Simplify right side
    679,959,175.20x = 224,618,340,313,960,192
  5. Step 5: Solve for x
    x = 224,618,340,313,960,192/679,959,175.20
  6. Step 6: Final answer
    x = 330,340,921.20

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Double scale
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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.