Home / 898,110,981.04-1,239,379,963.76-501,639,756.56

Finding the Fourth Proportional to 898,110,981.04, 1,239,379,963.76 and 501,639,756.56

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Solution

The fourth proportional to 898,110,981.04, 1,239,379,963.76 and 501,639,756.56 is: 692,255,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,110,981.04 : 1,239,379,963.76 = 501,639,756.56 : x
  2. Step 2: Convert to fraction form
    898,110,981.04/1,239,379,963.76 = 501,639,756.56/x
  3. Step 3: Cross multiply
    898,110,981.04x = 1,239,379,963.76 × 501,639,756.56
  4. Step 4: Simplify right side
    898,110,981.04x = 621,722,263,305,907,968
  5. Step 5: Solve for x
    x = 621,722,263,305,907,968/898,110,981.04
  6. Step 6: Final answer
    x = 692,255,496.74

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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.