Home / 791,164,745.76-1,091,438,957.52-512,796,387.36

Finding the Fourth Proportional to 791,164,745.76, 1,091,438,957.52 and 512,796,387.36

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Solution

The fourth proportional to 791,164,745.76, 1,091,438,957.52 and 512,796,387.36 is: 707,420,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,164,745.76 : 1,091,438,957.52 = 512,796,387.36 : x
  2. Step 2: Convert to fraction form
    791,164,745.76/1,091,438,957.52 = 512,796,387.36/x
  3. Step 3: Cross multiply
    791,164,745.76x = 1,091,438,957.52 × 512,796,387.36
  4. Step 4: Simplify right side
    791,164,745.76x = 559,685,954,440,220,480
  5. Step 5: Solve for x
    x = 559,685,954,440,220,480/791,164,745.76
  6. Step 6: Final answer
    x = 707,420,240.15

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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.