Home / 20,809,256.64-28,717,889.76-11,641,352.64

Finding the Fourth Proportional to 20,809,256.64, 28,717,889.76 and 11,641,352.64

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Solution

The fourth proportional to 20,809,256.64, 28,717,889.76 and 11,641,352.64 is: 16,065,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,256.64 : 28,717,889.76 = 11,641,352.64 : x
  2. Step 2: Convert to fraction form
    20,809,256.64/28,717,889.76 = 11,641,352.64/x
  3. Step 3: Cross multiply
    20,809,256.64x = 28,717,889.76 × 11,641,352.64
  4. Step 4: Simplify right side
    20,809,256.64x = 334,315,081,772,805
  5. Step 5: Solve for x
    x = 334,315,081,772,805/20,809,256.64
  6. Step 6: Final answer
    x = 16,065,690.74

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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.