Home / 13,475,332.80-20,212,999.20-12,436,070.40

Finding the Fourth Proportional to 13,475,332.80, 20,212,999.20 and 12,436,070.40

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Solution

The fourth proportional to 13,475,332.80, 20,212,999.20 and 12,436,070.40 is: 18,654,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,332.80 : 20,212,999.20 = 12,436,070.40 : x
  2. Step 2: Convert to fraction form
    13,475,332.80/20,212,999.20 = 12,436,070.40/x
  3. Step 3: Cross multiply
    13,475,332.80x = 20,212,999.20 × 12,436,070.40
  4. Step 4: Simplify right side
    13,475,332.80x = 251,370,281,046,343.69
  5. Step 5: Solve for x
    x = 251,370,281,046,343.69/13,475,332.80
  6. Step 6: Final answer
    x = 18,654,105.60

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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.