Home / 252,389,618.20-378,584,427.30-209,307,467.80

Finding the Fourth Proportional to 252,389,618.20, 378,584,427.30 and 209,307,467.80

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Solution

The fourth proportional to 252,389,618.20, 378,584,427.30 and 209,307,467.80 is: 313,961,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,389,618.20 : 378,584,427.30 = 209,307,467.80 : x
  2. Step 2: Convert to fraction form
    252,389,618.20/378,584,427.30 = 209,307,467.80/x
  3. Step 3: Cross multiply
    252,389,618.20x = 378,584,427.30 × 209,307,467.80
  4. Step 4: Simplify right side
    252,389,618.20x = 79,240,547,826,676,192
  5. Step 5: Solve for x
    x = 79,240,547,826,676,192/252,389,618.20
  6. Step 6: Final answer
    x = 313,961,201.70

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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.