Home / 18,517,702.71-25,553,336.34-10,143,406.98

Finding the Fourth Proportional to 18,517,702.71, 25,553,336.34 and 10,143,406.98

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Solution

The fourth proportional to 18,517,702.71, 25,553,336.34 and 10,143,406.98 is: 13,997,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,702.71 : 25,553,336.34 = 10,143,406.98 : x
  2. Step 2: Convert to fraction form
    18,517,702.71/25,553,336.34 = 10,143,406.98/x
  3. Step 3: Cross multiply
    18,517,702.71x = 25,553,336.34 × 10,143,406.98
  4. Step 4: Simplify right side
    18,517,702.71x = 259,197,890,184,684.56
  5. Step 5: Solve for x
    x = 259,197,890,184,684.56/18,517,702.71
  6. Step 6: Final answer
    x = 13,997,302.70

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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.