Home / 9,989,789.32-13,785,908.34-5,406,110.92

Finding the Fourth Proportional to 9,989,789.32, 13,785,908.34 and 5,406,110.92

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Solution

The fourth proportional to 9,989,789.32, 13,785,908.34 and 5,406,110.92 is: 7,460,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,789.32 : 13,785,908.34 = 5,406,110.92 : x
  2. Step 2: Convert to fraction form
    9,989,789.32/13,785,908.34 = 5,406,110.92/x
  3. Step 3: Cross multiply
    9,989,789.32x = 13,785,908.34 × 5,406,110.92
  4. Step 4: Simplify right side
    9,989,789.32x = 74,528,149,618,993.08
  5. Step 5: Solve for x
    x = 74,528,149,618,993.08/9,989,789.32
  6. Step 6: Final answer
    x = 7,460,432.57

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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.