Home / 958,715,999.10-1,438,073,998.65-921,092,600.70

Finding the Fourth Proportional to 958,715,999.10, 1,438,073,998.65 and 921,092,600.70

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Solution

The fourth proportional to 958,715,999.10, 1,438,073,998.65 and 921,092,600.70 is: 1,381,638,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,715,999.10 : 1,438,073,998.65 = 921,092,600.70 : x
  2. Step 2: Convert to fraction form
    958,715,999.10/1,438,073,998.65 = 921,092,600.70/x
  3. Step 3: Cross multiply
    958,715,999.10x = 1,438,073,998.65 × 921,092,600.70
  4. Step 4: Simplify right side
    958,715,999.10x = 1,324,599,319,415,576,832
  5. Step 5: Solve for x
    x = 1,324,599,319,415,576,832/958,715,999.10
  6. Step 6: Final answer
    x = 1,381,638,901.05

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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.