Home / 13,135,425.60-19,703,138.40-12,239,630.40

Finding the Fourth Proportional to 13,135,425.60, 19,703,138.40 and 12,239,630.40

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Solution

The fourth proportional to 13,135,425.60, 19,703,138.40 and 12,239,630.40 is: 18,359,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,425.60 : 19,703,138.40 = 12,239,630.40 : x
  2. Step 2: Convert to fraction form
    13,135,425.60/19,703,138.40 = 12,239,630.40/x
  3. Step 3: Cross multiply
    13,135,425.60x = 19,703,138.40 × 12,239,630.40
  4. Step 4: Simplify right side
    13,135,425.60x = 241,159,131,736,047.34
  5. Step 5: Solve for x
    x = 241,159,131,736,047.34/13,135,425.60
  6. Step 6: Final answer
    x = 18,359,445.60

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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.