Home / 20,605,639.59-28,434,360.19-11,437,560.63

Finding the Fourth Proportional to 20,605,639.59, 28,434,360.19 and 11,437,560.63

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Solution

The fourth proportional to 20,605,639.59, 28,434,360.19 and 11,437,560.63 is: 15,783,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605,639.59 : 28,434,360.19 = 11,437,560.63 : x
  2. Step 2: Convert to fraction form
    20,605,639.59/28,434,360.19 = 11,437,560.63/x
  3. Step 3: Cross multiply
    20,605,639.59x = 28,434,360.19 × 11,437,560.63
  4. Step 4: Simplify right side
    20,605,639.59x = 325,219,718,506,211.56
  5. Step 5: Solve for x
    x = 325,219,718,506,211.56/20,605,639.59
  6. Step 6: Final answer
    x = 15,783,044.11

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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.