Home / 1,201,639,855.92-1,657,734,766.20-725,064,396.72

Finding the Fourth Proportional to 1,201,639,855.92, 1,657,734,766.20 and 725,064,396.72

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Solution

The fourth proportional to 1,201,639,855.92, 1,657,734,766.20 and 725,064,396.72 is: 1,000,270,132.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,639,855.92 : 1,657,734,766.20 = 725,064,396.72 : x
  2. Step 2: Convert to fraction form
    1,201,639,855.92/1,657,734,766.20 = 725,064,396.72/x
  3. Step 3: Cross multiply
    1,201,639,855.92x = 1,657,734,766.20 × 725,064,396.72
  4. Step 4: Simplify right side
    1,201,639,855.92x = 1,201,964,458,176,573,440
  5. Step 5: Solve for x
    x = 1,201,964,458,176,573,440/1,201,639,855.92
  6. Step 6: Final answer
    x = 1,000,270,132.73

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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.