Home / 986,187,672.45-1,360,939,721.73-534,069,149.39

Finding the Fourth Proportional to 986,187,672.45, 1,360,939,721.73 and 534,069,149.39

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Solution

The fourth proportional to 986,187,672.45, 1,360,939,721.73 and 534,069,149.39 is: 737,015,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,187,672.45 : 1,360,939,721.73 = 534,069,149.39 : x
  2. Step 2: Convert to fraction form
    986,187,672.45/1,360,939,721.73 = 534,069,149.39/x
  3. Step 3: Cross multiply
    986,187,672.45x = 1,360,939,721.73 × 534,069,149.39
  4. Step 4: Simplify right side
    986,187,672.45x = 726,835,919,548,599,680
  5. Step 5: Solve for x
    x = 726,835,919,548,599,680/986,187,672.45
  6. Step 6: Final answer
    x = 737,015,823.51

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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.