Home / 12,639,188-17,442,528.18-7,133,903.12

Finding the Fourth Proportional to 12,639,188, 17,442,528.18 and 7,133,903.12

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Solution

The fourth proportional to 12,639,188, 17,442,528.18 and 7,133,903.12 is: 9,845,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639,188 : 17,442,528.18 = 7,133,903.12 : x
  2. Step 2: Convert to fraction form
    12,639,188/17,442,528.18 = 7,133,903.12/x
  3. Step 3: Cross multiply
    12,639,188x = 17,442,528.18 × 7,133,903.12
  4. Step 4: Simplify right side
    12,639,188x = 124,433,306,203,989.92
  5. Step 5: Solve for x
    x = 124,433,306,203,989.92/12,639,188
  6. Step 6: Final answer
    x = 9,845,039.59

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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.