Home / 18,684,006.60-28,026,009.90-5,220,834.60

Finding the Fourth Proportional to 18,684,006.60, 28,026,009.90 and 5,220,834.60

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Solution

The fourth proportional to 18,684,006.60, 28,026,009.90 and 5,220,834.60 is: 7,831,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,006.60 : 28,026,009.90 = 5,220,834.60 : x
  2. Step 2: Convert to fraction form
    18,684,006.60/28,026,009.90 = 5,220,834.60/x
  3. Step 3: Cross multiply
    18,684,006.60x = 28,026,009.90 × 5,220,834.60
  4. Step 4: Simplify right side
    18,684,006.60x = 146,319,162,185,862.53
  5. Step 5: Solve for x
    x = 146,319,162,185,862.53/18,684,006.60
  6. Step 6: Final answer
    x = 7,831,251.90

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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.