Home / 1,091,734,634.90-1,635,935,578.63-648,203,912.80

Finding the Fourth Proportional to 1,091,734,634.90, 1,635,935,578.63 and 648,203,912.80

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Solution

The fourth proportional to 1,091,734,634.90, 1,635,935,578.63 and 648,203,912.80 is: 971,316,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,734,634.90 : 1,635,935,578.63 = 648,203,912.80 : x
  2. Step 2: Convert to fraction form
    1,091,734,634.90/1,635,935,578.63 = 648,203,912.80/x
  3. Step 3: Cross multiply
    1,091,734,634.90x = 1,635,935,578.63 × 648,203,912.80
  4. Step 4: Simplify right side
    1,091,734,634.90x = 1,060,419,843,148,518,400
  5. Step 5: Solve for x
    x = 1,060,419,843,148,518,400/1,091,734,634.90
  6. Step 6: Final answer
    x = 971,316,480.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.