Home / 157,447,620.80-236,171,431.20-42,431,940.80

Finding the Fourth Proportional to 157,447,620.80, 236,171,431.20 and 42,431,940.80

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Solution

The fourth proportional to 157,447,620.80, 236,171,431.20 and 42,431,940.80 is: 63,647,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447,620.80 : 236,171,431.20 = 42,431,940.80 : x
  2. Step 2: Convert to fraction form
    157,447,620.80/236,171,431.20 = 42,431,940.80/x
  3. Step 3: Cross multiply
    157,447,620.80x = 236,171,431.20 × 42,431,940.80
  4. Step 4: Simplify right side
    157,447,620.80x = 10,021,212,187,329,672
  5. Step 5: Solve for x
    x = 10,021,212,187,329,672/157,447,620.80
  6. Step 6: Final answer
    x = 63,647,911.20

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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.