Home / 7,142,789.05-9,857,154.20-4,045,235.38

Finding the Fourth Proportional to 7,142,789.05, 9,857,154.20 and 4,045,235.38

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Solution

The fourth proportional to 7,142,789.05, 9,857,154.20 and 4,045,235.38 is: 5,582,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,789.05 : 9,857,154.20 = 4,045,235.38 : x
  2. Step 2: Convert to fraction form
    7,142,789.05/9,857,154.20 = 4,045,235.38/x
  3. Step 3: Cross multiply
    7,142,789.05x = 9,857,154.20 × 4,045,235.38
  4. Step 4: Simplify right side
    7,142,789.05x = 39,874,508,871,086.53
  5. Step 5: Solve for x
    x = 39,874,508,871,086.53/7,142,789.05
  6. Step 6: Final answer
    x = 5,582,484.46

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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.