Home / 20,809,141.95-28,716,404.34-11,516,730.06

Finding the Fourth Proportional to 20,809,141.95, 28,716,404.34 and 11,516,730.06

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Solution

The fourth proportional to 20,809,141.95, 28,716,404.34 and 11,516,730.06 is: 15,892,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,141.95 : 28,716,404.34 = 11,516,730.06 : x
  2. Step 2: Convert to fraction form
    20,809,141.95/28,716,404.34 = 11,516,730.06/x
  3. Step 3: Cross multiply
    20,809,141.95x = 28,716,404.34 × 11,516,730.06
  4. Step 4: Simplify right side
    20,809,141.95x = 330,719,077,077,592.50
  5. Step 5: Solve for x
    x = 330,719,077,077,592.50/20,809,141.95
  6. Step 6: Final answer
    x = 15,892,970.40

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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.