Home / 9,989,455.38-13,785,448.42-5,405,776.75

Finding the Fourth Proportional to 9,989,455.38, 13,785,448.42 and 5,405,776.75

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Solution

The fourth proportional to 9,989,455.38, 13,785,448.42 and 5,405,776.75 is: 7,459,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,455.38 : 13,785,448.42 = 5,405,776.75 : x
  2. Step 2: Convert to fraction form
    9,989,455.38/13,785,448.42 = 5,405,776.75/x
  3. Step 3: Cross multiply
    9,989,455.38x = 13,785,448.42 × 5,405,776.75
  4. Step 4: Simplify right side
    9,989,455.38x = 74,521,056,581,149.27
  5. Step 5: Solve for x
    x = 74,521,056,581,149.27/9,989,455.38
  6. Step 6: Final answer
    x = 7,459,971.92

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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.