Home / 30,430,606.60-41,998,543.50-18,831,906.64

Finding the Fourth Proportional to 30,430,606.60, 41,998,543.50 and 18,831,906.64

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Solution

The fourth proportional to 30,430,606.60, 41,998,543.50 and 18,831,906.64 is: 25,990,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,606.60 : 41,998,543.50 = 18,831,906.64 : x
  2. Step 2: Convert to fraction form
    30,430,606.60/41,998,543.50 = 18,831,906.64/x
  3. Step 3: Cross multiply
    30,430,606.60x = 41,998,543.50 × 18,831,906.64
  4. Step 4: Simplify right side
    30,430,606.60x = 790,912,650,207,978.88
  5. Step 5: Solve for x
    x = 790,912,650,207,978.88/30,430,606.60
  6. Step 6: Final answer
    x = 25,990,696.16

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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.