Home / 13,856,686.56-20,638,915.08-13,234,966.32

Finding the Fourth Proportional to 13,856,686.56, 20,638,915.08 and 13,234,966.32

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Solution

The fourth proportional to 13,856,686.56, 20,638,915.08 and 13,234,966.32 is: 19,712,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856,686.56 : 20,638,915.08 = 13,234,966.32 : x
  2. Step 2: Convert to fraction form
    13,856,686.56/20,638,915.08 = 13,234,966.32/x
  3. Step 3: Cross multiply
    13,856,686.56x = 20,638,915.08 × 13,234,966.32
  4. Step 4: Simplify right side
    13,856,686.56x = 273,155,345,965,140.09
  5. Step 5: Solve for x
    x = 273,155,345,965,140.09/13,856,686.56
  6. Step 6: Final answer
    x = 19,712,890.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.