Home / 1,280,128,232.80-1,920,192,349.20-1,229,963,701.60

Finding the Fourth Proportional to 1,280,128,232.80, 1,920,192,349.20 and 1,229,963,701.60

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Solution

The fourth proportional to 1,280,128,232.80, 1,920,192,349.20 and 1,229,963,701.60 is: 1,844,945,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,128,232.80 : 1,920,192,349.20 = 1,229,963,701.60 : x
  2. Step 2: Convert to fraction form
    1,280,128,232.80/1,920,192,349.20 = 1,229,963,701.60/x
  3. Step 3: Cross multiply
    1,280,128,232.80x = 1,920,192,349.20 × 1,229,963,701.60
  4. Step 4: Simplify right side
    1,280,128,232.80x = 2,361,766,889,606,031,872
  5. Step 5: Solve for x
    x = 2,361,766,889,606,031,872/1,280,128,232.80
  6. Step 6: Final answer
    x = 1,844,945,552.40

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