Home / 340,855,590.80-511,283,386.20-211,609,139.60

Finding the Fourth Proportional to 340,855,590.80, 511,283,386.20 and 211,609,139.60

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Solution

The fourth proportional to 340,855,590.80, 511,283,386.20 and 211,609,139.60 is: 317,413,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,855,590.80 : 511,283,386.20 = 211,609,139.60 : x
  2. Step 2: Convert to fraction form
    340,855,590.80/511,283,386.20 = 211,609,139.60/x
  3. Step 3: Cross multiply
    340,855,590.80x = 511,283,386.20 × 211,609,139.60
  4. Step 4: Simplify right side
    340,855,590.80x = 108,192,237,445,556,512
  5. Step 5: Solve for x
    x = 108,192,237,445,556,512/340,855,590.80
  6. Step 6: Final answer
    x = 317,413,709.40

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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.