Home / 20,689,955.57-28,553,024.54-11,522,598.32

Finding the Fourth Proportional to 20,689,955.57, 28,553,024.54 and 11,522,598.32

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Solution

The fourth proportional to 20,689,955.57, 28,553,024.54 and 11,522,598.32 is: 15,901,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,955.57 : 28,553,024.54 = 11,522,598.32 : x
  2. Step 2: Convert to fraction form
    20,689,955.57/28,553,024.54 = 11,522,598.32/x
  3. Step 3: Cross multiply
    20,689,955.57x = 28,553,024.54 × 11,522,598.32
  4. Step 4: Simplify right side
    20,689,955.57x = 329,005,032,595,522.75
  5. Step 5: Solve for x
    x = 329,005,032,595,522.75/20,689,955.57
  6. Step 6: Final answer
    x = 15,901,679.03

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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.