Home / 212,802,083-319,216,610.09-89,957,505.68

Finding the Fourth Proportional to 212,802,083, 319,216,610.09 and 89,957,505.68

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Solution

The fourth proportional to 212,802,083, 319,216,610.09 and 89,957,505.68 is: 134,941,959.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,802,083 : 319,216,610.09 = 89,957,505.68 : x
  2. Step 2: Convert to fraction form
    212,802,083/319,216,610.09 = 89,957,505.68/x
  3. Step 3: Cross multiply
    212,802,083x = 319,216,610.09 × 89,957,505.68
  4. Step 4: Simplify right side
    212,802,083x = 28,715,930,014,871,732
  5. Step 5: Solve for x
    x = 28,715,930,014,871,732/212,802,083
  6. Step 6: Final answer
    x = 134,941,959.26

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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.