Home / 9,989,124-13,785,003.42-5,405,445.38

Finding the Fourth Proportional to 9,989,124, 13,785,003.42 and 5,405,445.38

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Solution

The fourth proportional to 9,989,124, 13,785,003.42 and 5,405,445.38 is: 7,459,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,124 : 13,785,003.42 = 5,405,445.38 : x
  2. Step 2: Convert to fraction form
    9,989,124/13,785,003.42 = 5,405,445.38/x
  3. Step 3: Cross multiply
    9,989,124x = 13,785,003.42 × 5,405,445.38
  4. Step 4: Simplify right side
    9,989,124x = 74,514,082,980,998.19
  5. Step 5: Solve for x
    x = 74,514,082,980,998.19/9,989,124
  6. Step 6: Final answer
    x = 7,459,521.27

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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.