Home / 960,339,009.36-1,324,862,016.84-642,901,522.86

Finding the Fourth Proportional to 960,339,009.36, 1,324,862,016.84 and 642,901,522.86

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Solution

The fourth proportional to 960,339,009.36, 1,324,862,016.84 and 642,901,522.86 is: 886,932,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,339,009.36 : 1,324,862,016.84 = 642,901,522.86 : x
  2. Step 2: Convert to fraction form
    960,339,009.36/1,324,862,016.84 = 642,901,522.86/x
  3. Step 3: Cross multiply
    960,339,009.36x = 1,324,862,016.84 × 642,901,522.86
  4. Step 4: Simplify right side
    960,339,009.36x = 851,755,808,205,806,976
  5. Step 5: Solve for x
    x = 851,755,808,205,806,976/960,339,009.36
  6. Step 6: Final answer
    x = 886,932,426.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.