Home / 15,764,981.34-21,756,319.95-9,961,645.62

Finding the Fourth Proportional to 15,764,981.34, 21,756,319.95 and 9,961,645.62

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Solution

The fourth proportional to 15,764,981.34, 21,756,319.95 and 9,961,645.62 is: 13,747,478.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764,981.34 : 21,756,319.95 = 9,961,645.62 : x
  2. Step 2: Convert to fraction form
    15,764,981.34/21,756,319.95 = 9,961,645.62/x
  3. Step 3: Cross multiply
    15,764,981.34x = 21,756,319.95 × 9,961,645.62
  4. Step 4: Simplify right side
    15,764,981.34x = 216,728,749,337,236.09
  5. Step 5: Solve for x
    x = 216,728,749,337,236.09/15,764,981.34
  6. Step 6: Final answer
    x = 13,747,478.96

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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.