Home / 13,390,702.25-18,481,188.02-8,166,742.65

Finding the Fourth Proportional to 13,390,702.25, 18,481,188.02 and 8,166,742.65

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Solution

The fourth proportional to 13,390,702.25, 18,481,188.02 and 8,166,742.65 is: 11,271,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,702.25 : 18,481,188.02 = 8,166,742.65 : x
  2. Step 2: Convert to fraction form
    13,390,702.25/18,481,188.02 = 8,166,742.65/x
  3. Step 3: Cross multiply
    13,390,702.25x = 18,481,188.02 × 8,166,742.65
  4. Step 4: Simplify right side
    13,390,702.25x = 150,931,106,384,769.34
  5. Step 5: Solve for x
    x = 150,931,106,384,769.34/13,390,702.25
  6. Step 6: Final answer
    x = 11,271,336.16

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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.