Home / 21,173,079.60-31,761,137.40-8,864,656.92

Finding the Fourth Proportional to 21,173,079.60, 31,761,137.40 and 8,864,656.92

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Solution

The fourth proportional to 21,173,079.60, 31,761,137.40 and 8,864,656.92 is: 13,297,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,079.60 : 31,761,137.40 = 8,864,656.92 : x
  2. Step 2: Convert to fraction form
    21,173,079.60/31,761,137.40 = 8,864,656.92/x
  3. Step 3: Cross multiply
    21,173,079.60x = 31,761,137.40 × 8,864,656.92
  4. Step 4: Simplify right side
    21,173,079.60x = 281,551,586,439,980.81
  5. Step 5: Solve for x
    x = 281,551,586,439,980.81/21,173,079.60
  6. Step 6: Final answer
    x = 13,297,620.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.