Home / 15,900,788.64-21,940,702.56-8,931,198.72

Finding the Fourth Proportional to 15,900,788.64, 21,940,702.56 and 8,931,198.72

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Solution

The fourth proportional to 15,900,788.64, 21,940,702.56 and 8,931,198.72 is: 12,323,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900,788.64 : 21,940,702.56 = 8,931,198.72 : x
  2. Step 2: Convert to fraction form
    15,900,788.64/21,940,702.56 = 8,931,198.72/x
  3. Step 3: Cross multiply
    15,900,788.64x = 21,940,702.56 × 8,931,198.72
  4. Step 4: Simplify right side
    15,900,788.64x = 195,956,774,619,772.72
  5. Step 5: Solve for x
    x = 195,956,774,619,772.72/15,900,788.64
  6. Step 6: Final answer
    x = 12,323,714.19

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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.