Home / 253,403,989.12-349,697,505.06-137,510,485.12

Finding the Fourth Proportional to 253,403,989.12, 349,697,505.06 and 137,510,485.12

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Solution

The fourth proportional to 253,403,989.12, 349,697,505.06 and 137,510,485.12 is: 189,764,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,403,989.12 : 349,697,505.06 = 137,510,485.12 : x
  2. Step 2: Convert to fraction form
    253,403,989.12/349,697,505.06 = 137,510,485.12/x
  3. Step 3: Cross multiply
    253,403,989.12x = 349,697,505.06 × 137,510,485.12
  4. Step 4: Simplify right side
    253,403,989.12x = 48,087,073,566,054,256
  5. Step 5: Solve for x
    x = 48,087,073,566,054,256/253,403,989.12
  6. Step 6: Final answer
    x = 189,764,469.51

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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.