Home / 118,213,203.80-177,021,207.30-77,603,821.40

Finding the Fourth Proportional to 118,213,203.80, 177,021,207.30 and 77,603,821.40

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Solution

The fourth proportional to 118,213,203.80, 177,021,207.30 and 77,603,821.40 is: 116,209,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213,203.80 : 177,021,207.30 = 77,603,821.40 : x
  2. Step 2: Convert to fraction form
    118,213,203.80/177,021,207.30 = 77,603,821.40/x
  3. Step 3: Cross multiply
    118,213,203.80x = 177,021,207.30 × 77,603,821.40
  4. Step 4: Simplify right side
    118,213,203.80x = 13,737,522,155,321,578
  5. Step 5: Solve for x
    x = 13,737,522,155,321,578/118,213,203.80
  6. Step 6: Final answer
    x = 116,209,710.20

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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.