Home / 752,970,621.78-1,039,124,689.74-418,457,240.82

Finding the Fourth Proportional to 752,970,621.78, 1,039,124,689.74 and 418,457,240.82

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Solution

The fourth proportional to 752,970,621.78, 1,039,124,689.74 and 418,457,240.82 is: 577,485,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,970,621.78 : 1,039,124,689.74 = 418,457,240.82 : x
  2. Step 2: Convert to fraction form
    752,970,621.78/1,039,124,689.74 = 418,457,240.82/x
  3. Step 3: Cross multiply
    752,970,621.78x = 1,039,124,689.74 × 418,457,240.82
  4. Step 4: Simplify right side
    752,970,621.78x = 434,829,250,536,538,944
  5. Step 5: Solve for x
    x = 434,829,250,536,538,944/752,970,621.78
  6. Step 6: Final answer
    x = 577,485,014.63

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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.