Home / 712,220,672.88-982,919,054.54-448,129,039.55

Finding the Fourth Proportional to 712,220,672.88, 982,919,054.54 and 448,129,039.55

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Solution

The fourth proportional to 712,220,672.88, 982,919,054.54 and 448,129,039.55 is: 618,452,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,220,672.88 : 982,919,054.54 = 448,129,039.55 : x
  2. Step 2: Convert to fraction form
    712,220,672.88/982,919,054.54 = 448,129,039.55/x
  3. Step 3: Cross multiply
    712,220,672.88x = 982,919,054.54 × 448,129,039.55
  4. Step 4: Simplify right side
    712,220,672.88x = 440,474,571,862,610,048
  5. Step 5: Solve for x
    x = 440,474,571,862,610,048/712,220,672.88
  6. Step 6: Final answer
    x = 618,452,382.30

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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.