Home / 212,657,491.89-318,986,238.02-51,099,427.89

Finding the Fourth Proportional to 212,657,491.89, 318,986,238.02 and 51,099,427.89

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Solution

The fourth proportional to 212,657,491.89, 318,986,238.02 and 51,099,427.89 is: 76,649,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,657,491.89 : 318,986,238.02 = 51,099,427.89 : x
  2. Step 2: Convert to fraction form
    212,657,491.89/318,986,238.02 = 51,099,427.89/x
  3. Step 3: Cross multiply
    212,657,491.89x = 318,986,238.02 × 51,099,427.89
  4. Step 4: Simplify right side
    212,657,491.89x = 16,300,014,267,349,868
  5. Step 5: Solve for x
    x = 16,300,014,267,349,868/212,657,491.89
  6. Step 6: Final answer
    x = 76,649,141.88

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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.