Home / 12,477,376.60-18,722,285.70-7,090,163.80

Finding the Fourth Proportional to 12,477,376.60, 18,722,285.70 and 7,090,163.80

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Solution

The fourth proportional to 12,477,376.60, 18,722,285.70 and 7,090,163.80 is: 10,638,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,376.60 : 18,722,285.70 = 7,090,163.80 : x
  2. Step 2: Convert to fraction form
    12,477,376.60/18,722,285.70 = 7,090,163.80/x
  3. Step 3: Cross multiply
    12,477,376.60x = 18,722,285.70 × 7,090,163.80
  4. Step 4: Simplify right side
    12,477,376.60x = 132,744,072,323,397.66
  5. Step 5: Solve for x
    x = 132,744,072,323,397.66/12,477,376.60
  6. Step 6: Final answer
    x = 10,638,780.62

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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.