Home / 208,845,535.48-288,189,968.94-120,745,211.72

Finding the Fourth Proportional to 208,845,535.48, 288,189,968.94 and 120,745,211.72

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Solution

The fourth proportional to 208,845,535.48, 288,189,968.94 and 120,745,211.72 is: 166,618,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845,535.48 : 288,189,968.94 = 120,745,211.72 : x
  2. Step 2: Convert to fraction form
    208,845,535.48/288,189,968.94 = 120,745,211.72/x
  3. Step 3: Cross multiply
    208,845,535.48x = 288,189,968.94 × 120,745,211.72
  4. Step 4: Simplify right side
    208,845,535.48x = 34,797,558,815,240,524
  5. Step 5: Solve for x
    x = 34,797,558,815,240,524/208,845,535.48
  6. Step 6: Final answer
    x = 166,618,638.68

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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.