Home / 672,851,268.14-1,009,270,167.33-212,789,515.82

Finding the Fourth Proportional to 672,851,268.14, 1,009,270,167.33 and 212,789,515.82

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Solution

The fourth proportional to 672,851,268.14, 1,009,270,167.33 and 212,789,515.82 is: 319,182,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,851,268.14 : 1,009,270,167.33 = 212,789,515.82 : x
  2. Step 2: Convert to fraction form
    672,851,268.14/1,009,270,167.33 = 212,789,515.82/x
  3. Step 3: Cross multiply
    672,851,268.14x = 1,009,270,167.33 × 212,789,515.82
  4. Step 4: Simplify right side
    672,851,268.14x = 214,762,110,237,721,088
  5. Step 5: Solve for x
    x = 214,762,110,237,721,088/672,851,268.14
  6. Step 6: Final answer
    x = 319,182,143.82

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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.