Home / 13,487,225.60-20,230,838.40-12,591,430.40

Finding the Fourth Proportional to 13,487,225.60, 20,230,838.40 and 12,591,430.40

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Solution

The fourth proportional to 13,487,225.60, 20,230,838.40 and 12,591,430.40 is: 18,887,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487,225.60 : 20,230,838.40 = 12,591,430.40 : x
  2. Step 2: Convert to fraction form
    13,487,225.60/20,230,838.40 = 12,591,430.40/x
  3. Step 3: Cross multiply
    13,487,225.60x = 20,230,838.40 × 12,591,430.40
  4. Step 4: Simplify right side
    13,487,225.60x = 254,735,193,647,247.34
  5. Step 5: Solve for x
    x = 254,735,193,647,247.34/13,487,225.60
  6. Step 6: Final answer
    x = 18,887,145.60

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1.5x scale

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.