Home / 20,983,078.50-28,955,526.66-11,563,563.44

Finding the Fourth Proportional to 20,983,078.50, 28,955,526.66 and 11,563,563.44

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Solution

The fourth proportional to 20,983,078.50, 28,955,526.66 and 11,563,563.44 is: 15,957,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983,078.50 : 28,955,526.66 = 11,563,563.44 : x
  2. Step 2: Convert to fraction form
    20,983,078.50/28,955,526.66 = 11,563,563.44/x
  3. Step 3: Cross multiply
    20,983,078.50x = 28,955,526.66 × 11,563,563.44
  4. Step 4: Simplify right side
    20,983,078.50x = 334,829,069,326,743.69
  5. Step 5: Solve for x
    x = 334,829,069,326,743.69/20,983,078.50
  6. Step 6: Final answer
    x = 15,957,099.40

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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.