Home / 253,403,998.12-349,697,517.48-137,510,494.12

Finding the Fourth Proportional to 253,403,998.12, 349,697,517.48 and 137,510,494.12

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Solution

The fourth proportional to 253,403,998.12, 349,697,517.48 and 137,510,494.12 is: 189,764,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,403,998.12 : 349,697,517.48 = 137,510,494.12 : x
  2. Step 2: Convert to fraction form
    253,403,998.12/349,697,517.48 = 137,510,494.12/x
  3. Step 3: Cross multiply
    253,403,998.12x = 349,697,517.48 × 137,510,494.12
  4. Step 4: Simplify right side
    253,403,998.12x = 48,087,078,421,212,144
  5. Step 5: Solve for x
    x = 48,087,078,421,212,144/253,403,998.12
  6. Step 6: Final answer
    x = 189,764,481.93

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1.5x scale

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.