Home / 13,590,132.40-20,408,818.20-7,212,840.40

Finding the Fourth Proportional to 13,590,132.40, 20,408,818.20 and 7,212,840.40

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Solution

The fourth proportional to 13,590,132.40, 20,408,818.20 and 7,212,840.40 is: 10,831,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,132.40 : 20,408,818.20 = 7,212,840.40 : x
  2. Step 2: Convert to fraction form
    13,590,132.40/20,408,818.20 = 7,212,840.40/x
  3. Step 3: Cross multiply
    13,590,132.40x = 20,408,818.20 × 7,212,840.40
  4. Step 4: Simplify right side
    13,590,132.40x = 147,205,548,429,215.28
  5. Step 5: Solve for x
    x = 147,205,548,429,215.28/13,590,132.40
  6. Step 6: Final answer
    x = 10,831,796.49

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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.