Home / 13,148,420.15-18,144,471.74-7,347,249.56

Finding the Fourth Proportional to 13,148,420.15, 18,144,471.74 and 7,347,249.56

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Solution

The fourth proportional to 13,148,420.15, 18,144,471.74 and 7,347,249.56 is: 10,139,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,420.15 : 18,144,471.74 = 7,347,249.56 : x
  2. Step 2: Convert to fraction form
    13,148,420.15/18,144,471.74 = 7,347,249.56/x
  3. Step 3: Cross multiply
    13,148,420.15x = 18,144,471.74 × 7,347,249.56
  4. Step 4: Simplify right side
    13,148,420.15x = 133,311,962,016,772.36
  5. Step 5: Solve for x
    x = 133,311,962,016,772.36/13,148,420.15
  6. Step 6: Final answer
    x = 10,139,009.89

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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.