Home / 898,110,978.04-1,239,379,959.62-501,639,753.56

Finding the Fourth Proportional to 898,110,978.04, 1,239,379,959.62 and 501,639,753.56

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Solution

The fourth proportional to 898,110,978.04, 1,239,379,959.62 and 501,639,753.56 is: 692,255,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,110,978.04 : 1,239,379,959.62 = 501,639,753.56 : x
  2. Step 2: Convert to fraction form
    898,110,978.04/1,239,379,959.62 = 501,639,753.56/x
  3. Step 3: Cross multiply
    898,110,978.04x = 1,239,379,959.62 × 501,639,753.56
  4. Step 4: Simplify right side
    898,110,978.04x = 621,722,257,510,979,456
  5. Step 5: Solve for x
    x = 621,722,257,510,979,456/898,110,978.04
  6. Step 6: Final answer
    x = 692,255,492.60

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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.