Home / 13,453,492.72-18,565,815.12-7,341,921.28

Finding the Fourth Proportional to 13,453,492.72, 18,565,815.12 and 7,341,921.28

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Solution

The fourth proportional to 13,453,492.72, 18,565,815.12 and 7,341,921.28 is: 10,131,848.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453,492.72 : 18,565,815.12 = 7,341,921.28 : x
  2. Step 2: Convert to fraction form
    13,453,492.72/18,565,815.12 = 7,341,921.28/x
  3. Step 3: Cross multiply
    13,453,492.72x = 18,565,815.12 × 7,341,921.28
  4. Step 4: Simplify right side
    13,453,492.72x = 136,308,753,110,073.77
  5. Step 5: Solve for x
    x = 136,308,753,110,073.77/13,453,492.72
  6. Step 6: Final answer
    x = 10,131,848.73

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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.