Home / 86,958,464.78-119,952,564.28-54,306,729.74

Finding the Fourth Proportional to 86,958,464.78, 119,952,564.28 and 54,306,729.74

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Solution

The fourth proportional to 86,958,464.78, 119,952,564.28 and 54,306,729.74 is: 74,911,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958,464.78 : 119,952,564.28 = 54,306,729.74 : x
  2. Step 2: Convert to fraction form
    86,958,464.78/119,952,564.28 = 54,306,729.74/x
  3. Step 3: Cross multiply
    86,958,464.78x = 119,952,564.28 × 54,306,729.74
  4. Step 4: Simplify right side
    86,958,464.78x = 6,514,231,489,238,408
  5. Step 5: Solve for x
    x = 6,514,231,489,238,408/86,958,464.78
  6. Step 6: Final answer
    x = 74,911,988.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.