Home / 1,292,988,479.76-1,784,324,033.81-698,272,906.85

Finding the Fourth Proportional to 1,292,988,479.76, 1,784,324,033.81 and 698,272,906.85

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Solution

The fourth proportional to 1,292,988,479.76, 1,784,324,033.81 and 698,272,906.85 is: 963,616,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,988,479.76 : 1,784,324,033.81 = 698,272,906.85 : x
  2. Step 2: Convert to fraction form
    1,292,988,479.76/1,784,324,033.81 = 698,272,906.85/x
  3. Step 3: Cross multiply
    1,292,988,479.76x = 1,784,324,033.81 × 698,272,906.85
  4. Step 4: Simplify right side
    1,292,988,479.76x = 1,245,945,129,838,413,568
  5. Step 5: Solve for x
    x = 1,245,945,129,838,413,568/1,292,988,479.76
  6. Step 6: Final answer
    x = 963,616,574.58

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1.5x scale

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.