Home / 212,487,415.40-318,731,123.10-194,347,562.60

Finding the Fourth Proportional to 212,487,415.40, 318,731,123.10 and 194,347,562.60

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Solution

The fourth proportional to 212,487,415.40, 318,731,123.10 and 194,347,562.60 is: 291,521,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,487,415.40 : 318,731,123.10 = 194,347,562.60 : x
  2. Step 2: Convert to fraction form
    212,487,415.40/318,731,123.10 = 194,347,562.60/x
  3. Step 3: Cross multiply
    212,487,415.40x = 318,731,123.10 × 194,347,562.60
  4. Step 4: Simplify right side
    212,487,415.40x = 61,944,616,899,245,560
  5. Step 5: Solve for x
    x = 61,944,616,899,245,560/212,487,415.40
  6. Step 6: Final answer
    x = 291,521,343.90

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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.