Home / 13,590,133.40-20,408,819.70-7,212,841.40

Finding the Fourth Proportional to 13,590,133.40, 20,408,819.70 and 7,212,841.40

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Solution

The fourth proportional to 13,590,133.40, 20,408,819.70 and 7,212,841.40 is: 10,831,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,133.40 : 20,408,819.70 = 7,212,841.40 : x
  2. Step 2: Convert to fraction form
    13,590,133.40/20,408,819.70 = 7,212,841.40/x
  3. Step 3: Cross multiply
    13,590,133.40x = 20,408,819.70 × 7,212,841.40
  4. Step 4: Simplify right side
    13,590,133.40x = 147,205,579,657,295.59
  5. Step 5: Solve for x
    x = 147,205,579,657,295.59/13,590,133.40
  6. Step 6: Final answer
    x = 10,831,797.99

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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.