Home / 12,591,431.46-18,848,050.44-6,819,830.16

Finding the Fourth Proportional to 12,591,431.46, 18,848,050.44 and 6,819,830.16

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Solution

The fourth proportional to 12,591,431.46, 18,848,050.44 and 6,819,830.16 is: 10,208,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,431.46 : 18,848,050.44 = 6,819,830.16 : x
  2. Step 2: Convert to fraction form
    12,591,431.46/18,848,050.44 = 6,819,830.16/x
  3. Step 3: Cross multiply
    12,591,431.46x = 18,848,050.44 × 6,819,830.16
  4. Step 4: Simplify right side
    12,591,431.46x = 128,540,502,847,913.28
  5. Step 5: Solve for x
    x = 128,540,502,847,913.28/12,591,431.46
  6. Step 6: Final answer
    x = 10,208,569.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.