Home / 12,631,832.42-17,430,922.96-7,123,440.38

Finding the Fourth Proportional to 12,631,832.42, 17,430,922.96 and 7,123,440.38

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Solution

The fourth proportional to 12,631,832.42, 17,430,922.96 and 7,123,440.38 is: 9,829,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,832.42 : 17,430,922.96 = 7,123,440.38 : x
  2. Step 2: Convert to fraction form
    12,631,832.42/17,430,922.96 = 7,123,440.38/x
  3. Step 3: Cross multiply
    12,631,832.42x = 17,430,922.96 × 7,123,440.38
  4. Step 4: Simplify right side
    12,631,832.42x = 124,168,140,473,933.12
  5. Step 5: Solve for x
    x = 124,168,140,473,933.12/12,631,832.42
  6. Step 6: Final answer
    x = 9,829,780.54

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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.