Home / 13,436,990,969.40-20,165,564,150.10-6,890,519,647.80

Finding the Fourth Proportional to 13,436,990,969.40, 20,165,564,150.10 and 6,890,519,647.80

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Solution

The fourth proportional to 13,436,990,969.40, 20,165,564,150.10 and 6,890,519,647.80 is: 10,340,947,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436,990,969.40 : 20,165,564,150.10 = 6,890,519,647.80 : x
  2. Step 2: Convert to fraction form
    13,436,990,969.40/20,165,564,150.10 = 6,890,519,647.80/x
  3. Step 3: Cross multiply
    13,436,990,969.40x = 20,165,564,150.10 × 6,890,519,647.80
  4. Step 4: Simplify right side
    13,436,990,969.40x = 138,951,215,985,235,345,408
  5. Step 5: Solve for x
    x = 138,951,215,985,235,345,408/13,436,990,969.40
  6. Step 6: Final answer
    x = 10,340,947,337.22

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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.