Home / 8,380,903,787.16-12,561,003,914.34-7,192,128,230.46

Finding the Fourth Proportional to 8,380,903,787.16, 12,561,003,914.34 and 7,192,128,230.46

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Solution

The fourth proportional to 8,380,903,787.16, 12,561,003,914.34 and 7,192,128,230.46 is: 10,779,308,908.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380,903,787.16 : 12,561,003,914.34 = 7,192,128,230.46 : x
  2. Step 2: Convert to fraction form
    8,380,903,787.16/12,561,003,914.34 = 7,192,128,230.46/x
  3. Step 3: Cross multiply
    8,380,903,787.16x = 12,561,003,914.34 × 7,192,128,230.46
  4. Step 4: Simplify right side
    8,380,903,787.16x = 90,340,350,855,243,284,480
  5. Step 5: Solve for x
    x = 90,340,350,855,243,284,480/8,380,903,787.16
  6. Step 6: Final answer
    x = 10,779,308,908.62

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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.