Home / 9,989,445.59-13,785,434.91-5,405,766.96

Finding the Fourth Proportional to 9,989,445.59, 13,785,434.91 and 5,405,766.96

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Solution

The fourth proportional to 9,989,445.59, 13,785,434.91 and 5,405,766.96 is: 7,459,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,445.59 : 13,785,434.91 = 5,405,766.96 : x
  2. Step 2: Convert to fraction form
    9,989,445.59/13,785,434.91 = 5,405,766.96/x
  3. Step 3: Cross multiply
    9,989,445.59x = 13,785,434.91 × 5,405,766.96
  4. Step 4: Simplify right side
    9,989,445.59x = 74,520,848,617,403.95
  5. Step 5: Solve for x
    x = 74,520,848,617,403.95/9,989,445.59
  6. Step 6: Final answer
    x = 7,459,958.41

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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.