Home / 208,754,520.99-288,064,438.76-120,654,224.91

Finding the Fourth Proportional to 208,754,520.99, 288,064,438.76 and 120,654,224.91

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Solution

The fourth proportional to 208,754,520.99, 288,064,438.76 and 120,654,224.91 is: 166,493,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,754,520.99 : 288,064,438.76 = 120,654,224.91 : x
  2. Step 2: Convert to fraction form
    208,754,520.99/288,064,438.76 = 120,654,224.91/x
  3. Step 3: Cross multiply
    208,754,520.99x = 288,064,438.76 × 120,654,224.91
  4. Step 4: Simplify right side
    208,754,520.99x = 34,756,191,583,023,596
  5. Step 5: Solve for x
    x = 34,756,191,583,023,596/208,754,520.99
  6. Step 6: Final answer
    x = 166,493,120.33

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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.