Home / 20,190,109.60-30,285,164.40-7,408,953.55

Finding the Fourth Proportional to 20,190,109.60, 30,285,164.40 and 7,408,953.55

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Solution

The fourth proportional to 20,190,109.60, 30,285,164.40 and 7,408,953.55 is: 11,113,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,109.60 : 30,285,164.40 = 7,408,953.55 : x
  2. Step 2: Convert to fraction form
    20,190,109.60/30,285,164.40 = 7,408,953.55/x
  3. Step 3: Cross multiply
    20,190,109.60x = 30,285,164.40 × 7,408,953.55
  4. Step 4: Simplify right side
    20,190,109.60x = 224,381,376,293,713.59
  5. Step 5: Solve for x
    x = 224,381,376,293,713.59/20,190,109.60
  6. Step 6: Final answer
    x = 11,113,430.33

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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.