Home / 209,821,985,135.95-289,554,337,245.61-113,478,071,598.64

Finding the Fourth Proportional to 209,821,985,135.95, 289,554,337,245.61 and 113,478,071,598.64

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Solution

The fourth proportional to 209,821,985,135.95, 289,554,337,245.61 and 113,478,071,598.64 is: 156,599,737,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,821,985,135.95 : 289,554,337,245.61 = 113,478,071,598.64 : x
  2. Step 2: Convert to fraction form
    209,821,985,135.95/289,554,337,245.61 = 113,478,071,598.64/x
  3. Step 3: Cross multiply
    209,821,985,135.95x = 289,554,337,245.61 × 113,478,071,598.64
  4. Step 4: Simplify right side
    209,821,985,135.95x = 32,858,067,813,654,083,928,064
  5. Step 5: Solve for x
    x = 32,858,067,813,654,083,928,064/209,821,985,135.95
  6. Step 6: Final answer
    x = 156,599,737,593.58

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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.