Home / 891,515,061.88-1,230,404,287.39-539,093,574.72

Finding the Fourth Proportional to 891,515,061.88, 1,230,404,287.39 and 539,093,574.72

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Solution

The fourth proportional to 891,515,061.88, 1,230,404,287.39 and 539,093,574.72 is: 744,017,767.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,515,061.88 : 1,230,404,287.39 = 539,093,574.72 : x
  2. Step 2: Convert to fraction form
    891,515,061.88/1,230,404,287.39 = 539,093,574.72/x
  3. Step 3: Cross multiply
    891,515,061.88x = 1,230,404,287.39 × 539,093,574.72
  4. Step 4: Simplify right side
    891,515,061.88x = 663,303,045,638,541,696
  5. Step 5: Solve for x
    x = 663,303,045,638,541,696/891,515,061.88
  6. Step 6: Final answer
    x = 744,017,767.06

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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.