Home / 1,021,620,570.92-1,409,836,334.24-551,721,846.48

Finding the Fourth Proportional to 1,021,620,570.92, 1,409,836,334.24 and 551,721,846.48

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Solution

The fourth proportional to 1,021,620,570.92, 1,409,836,334.24 and 551,721,846.48 is: 761,376,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,620,570.92 : 1,409,836,334.24 = 551,721,846.48 : x
  2. Step 2: Convert to fraction form
    1,021,620,570.92/1,409,836,334.24 = 551,721,846.48/x
  3. Step 3: Cross multiply
    1,021,620,570.92x = 1,409,836,334.24 × 551,721,846.48
  4. Step 4: Simplify right side
    1,021,620,570.92x = 777,837,505,561,487,232
  5. Step 5: Solve for x
    x = 777,837,505,561,487,232/1,021,620,570.92
  6. Step 6: Final answer
    x = 761,376,119.18

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Half scale
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Double scale
Find fourth proportional to 1,021,620,571.92, 1,409,836,335.62 and 551,721,847.48
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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.