Home / 9,989,789.82-13,785,909.03-5,406,111.42

Finding the Fourth Proportional to 9,989,789.82, 13,785,909.03 and 5,406,111.42

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Solution

The fourth proportional to 9,989,789.82, 13,785,909.03 and 5,406,111.42 is: 7,460,433.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,789.82 : 13,785,909.03 = 5,406,111.42 : x
  2. Step 2: Convert to fraction form
    9,989,789.82/13,785,909.03 = 5,406,111.42/x
  3. Step 3: Cross multiply
    9,989,789.82x = 13,785,909.03 × 5,406,111.42
  4. Step 4: Simplify right side
    9,989,789.82x = 74,528,160,242,164.12
  5. Step 5: Solve for x
    x = 74,528,160,242,164.12/9,989,789.82
  6. Step 6: Final answer
    x = 7,460,433.26

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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.