Home / 986,161,920.78-1,360,925,480.02-562,767,152.48

Finding the Fourth Proportional to 986,161,920.78, 1,360,925,480.02 and 562,767,152.48

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Solution

The fourth proportional to 986,161,920.78, 1,360,925,480.02 and 562,767,152.48 is: 776,631,241.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,161,920.78 : 1,360,925,480.02 = 562,767,152.48 : x
  2. Step 2: Convert to fraction form
    986,161,920.78/1,360,925,480.02 = 562,767,152.48/x
  3. Step 3: Cross multiply
    986,161,920.78x = 1,360,925,480.02 × 562,767,152.48
  4. Step 4: Simplify right side
    986,161,920.78x = 765,884,157,128,332,544
  5. Step 5: Solve for x
    x = 765,884,157,128,332,544/986,161,920.78
  6. Step 6: Final answer
    x = 776,631,241.78

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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.