Home / 38,910,311.15-53,697,371.32-21,270,188.56

Finding the Fourth Proportional to 38,910,311.15, 53,697,371.32 and 21,270,188.56

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Solution

The fourth proportional to 38,910,311.15, 53,697,371.32 and 21,270,188.56 is: 29,353,484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,311.15 : 53,697,371.32 = 21,270,188.56 : x
  2. Step 2: Convert to fraction form
    38,910,311.15/53,697,371.32 = 21,270,188.56/x
  3. Step 3: Cross multiply
    38,910,311.15x = 53,697,371.32 × 21,270,188.56
  4. Step 4: Simplify right side
    38,910,311.15x = 1,142,153,213,152,736
  5. Step 5: Solve for x
    x = 1,142,153,213,152,736/38,910,311.15
  6. Step 6: Final answer
    x = 29,353,484.45

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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.