Home / 679,959,235.20-1,019,938,852.80-220,227,340.80

Finding the Fourth Proportional to 679,959,235.20, 1,019,938,852.80 and 220,227,340.80

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Solution

The fourth proportional to 679,959,235.20, 1,019,938,852.80 and 220,227,340.80 is: 330,341,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,959,235.20 : 1,019,938,852.80 = 220,227,340.80 : x
  2. Step 2: Convert to fraction form
    679,959,235.20/1,019,938,852.80 = 220,227,340.80/x
  3. Step 3: Cross multiply
    679,959,235.20x = 1,019,938,852.80 × 220,227,340.80
  4. Step 4: Simplify right side
    679,959,235.20x = 224,618,421,330,746,624
  5. Step 5: Solve for x
    x = 224,618,421,330,746,624/679,959,235.20
  6. Step 6: Final answer
    x = 330,341,011.20

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Double scale
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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.