Home / 986,187,672.51-1,360,939,721.79-534,069,149.43

Finding the Fourth Proportional to 986,187,672.51, 1,360,939,721.79 and 534,069,149.43

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Solution

The fourth proportional to 986,187,672.51, 1,360,939,721.79 and 534,069,149.43 is: 737,015,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,187,672.51 : 1,360,939,721.79 = 534,069,149.43 : x
  2. Step 2: Convert to fraction form
    986,187,672.51/1,360,939,721.79 = 534,069,149.43/x
  3. Step 3: Cross multiply
    986,187,672.51x = 1,360,939,721.79 × 534,069,149.43
  4. Step 4: Simplify right side
    986,187,672.51x = 726,835,919,648,965,632
  5. Step 5: Solve for x
    x = 726,835,919,648,965,632/986,187,672.51
  6. Step 6: Final answer
    x = 737,015,823.57

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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.