Home / 700,786,901.64-967,092,190.38-387,542,191.80

Finding the Fourth Proportional to 700,786,901.64, 967,092,190.38 and 387,542,191.80

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Solution

The fourth proportional to 700,786,901.64, 967,092,190.38 and 387,542,191.80 is: 534,811,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,786,901.64 : 967,092,190.38 = 387,542,191.80 : x
  2. Step 2: Convert to fraction form
    700,786,901.64/967,092,190.38 = 387,542,191.80/x
  3. Step 3: Cross multiply
    700,786,901.64x = 967,092,190.38 × 387,542,191.80
  4. Step 4: Simplify right side
    700,786,901.64x = 374,789,027,132,528,064
  5. Step 5: Solve for x
    x = 374,789,027,132,528,064/700,786,901.64
  6. Step 6: Final answer
    x = 534,811,689.91

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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.