Home / 12,358,889.10-18,538,333.65-7,823,925.90

Finding the Fourth Proportional to 12,358,889.10, 18,538,333.65 and 7,823,925.90

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Solution

The fourth proportional to 12,358,889.10, 18,538,333.65 and 7,823,925.90 is: 11,735,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,889.10 : 18,538,333.65 = 7,823,925.90 : x
  2. Step 2: Convert to fraction form
    12,358,889.10/18,538,333.65 = 7,823,925.90/x
  3. Step 3: Cross multiply
    12,358,889.10x = 18,538,333.65 × 7,823,925.90
  4. Step 4: Simplify right side
    12,358,889.10x = 145,042,548,787,076.53
  5. Step 5: Solve for x
    x = 145,042,548,787,076.53/12,358,889.10
  6. Step 6: Final answer
    x = 11,735,888.85

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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.