Home / 12,907,459,404.80-19,361,189,107.20-12,620,804,940.80

Finding the Fourth Proportional to 12,907,459,404.80, 19,361,189,107.20 and 12,620,804,940.80

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Solution

The fourth proportional to 12,907,459,404.80, 19,361,189,107.20 and 12,620,804,940.80 is: 18,931,207,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907,459,404.80 : 19,361,189,107.20 = 12,620,804,940.80 : x
  2. Step 2: Convert to fraction form
    12,907,459,404.80/19,361,189,107.20 = 12,620,804,940.80/x
  3. Step 3: Cross multiply
    12,907,459,404.80x = 19,361,189,107.20 × 12,620,804,940.80
  4. Step 4: Simplify right side
    12,907,459,404.80x = 244,353,791,143,912,898,560
  5. Step 5: Solve for x
    x = 244,353,791,143,912,898,560/12,907,459,404.80
  6. Step 6: Final answer
    x = 18,931,207,411.20

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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.