Home / 18,630,665.40-27,938,332.26-7,120,383.96

Finding the Fourth Proportional to 18,630,665.40, 27,938,332.26 and 7,120,383.96

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Solution

The fourth proportional to 18,630,665.40, 27,938,332.26 and 7,120,383.96 is: 10,677,646.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630,665.40 : 27,938,332.26 = 7,120,383.96 : x
  2. Step 2: Convert to fraction form
    18,630,665.40/27,938,332.26 = 7,120,383.96/x
  3. Step 3: Cross multiply
    18,630,665.40x = 27,938,332.26 × 7,120,383.96
  4. Step 4: Simplify right side
    18,630,665.40x = 198,931,652,893,254.56
  5. Step 5: Solve for x
    x = 198,931,652,893,254.56/18,630,665.40
  6. Step 6: Final answer
    x = 10,677,646.16

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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.