Home / 215,105,633.60-322,784,421.60-78,804,795.20

Finding the Fourth Proportional to 215,105,633.60, 322,784,421.60 and 78,804,795.20

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Solution

The fourth proportional to 215,105,633.60, 322,784,421.60 and 78,804,795.20 is: 118,253,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,105,633.60 : 322,784,421.60 = 78,804,795.20 : x
  2. Step 2: Convert to fraction form
    215,105,633.60/322,784,421.60 = 78,804,795.20/x
  3. Step 3: Cross multiply
    215,105,633.60x = 322,784,421.60 × 78,804,795.20
  4. Step 4: Simplify right side
    215,105,633.60x = 25,436,960,237,938,460
  5. Step 5: Solve for x
    x = 25,436,960,237,938,460/215,105,633.60
  6. Step 6: Final answer
    x = 118,253,342.84

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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.