Home / 885,740,418.70-1,328,610,628.05-656,157,906.70

Finding the Fourth Proportional to 885,740,418.70, 1,328,610,628.05 and 656,157,906.70

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Solution

The fourth proportional to 885,740,418.70, 1,328,610,628.05 and 656,157,906.70 is: 984,236,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,740,418.70 : 1,328,610,628.05 = 656,157,906.70 : x
  2. Step 2: Convert to fraction form
    885,740,418.70/1,328,610,628.05 = 656,157,906.70/x
  3. Step 3: Cross multiply
    885,740,418.70x = 1,328,610,628.05 × 656,157,906.70
  4. Step 4: Simplify right side
    885,740,418.70x = 871,778,368,520,660,352
  5. Step 5: Solve for x
    x = 871,778,368,520,660,352/885,740,418.70
  6. Step 6: Final answer
    x = 984,236,860.05

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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.