Home / 30,430,594.86-41,998,527.30-18,831,894.90

Finding the Fourth Proportional to 30,430,594.86, 41,998,527.30 and 18,831,894.90

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Solution

The fourth proportional to 30,430,594.86, 41,998,527.30 and 18,831,894.90 is: 25,990,679.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,594.86 : 41,998,527.30 = 18,831,894.90 : x
  2. Step 2: Convert to fraction form
    30,430,594.86/41,998,527.30 = 18,831,894.90/x
  3. Step 3: Cross multiply
    30,430,594.86x = 41,998,527.30 × 18,831,894.90
  4. Step 4: Simplify right side
    30,430,594.86x = 790,911,852,068,380.62
  5. Step 5: Solve for x
    x = 790,911,852,068,380.62/30,430,594.86
  6. Step 6: Final answer
    x = 25,990,679.96

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1.5x scale

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.