Home / 1,275,508,935.21-1,913,263,427.40-306,160,551.21

Finding the Fourth Proportional to 1,275,508,935.21, 1,913,263,427.40 and 306,160,551.21

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Solution

The fourth proportional to 1,275,508,935.21, 1,913,263,427.40 and 306,160,551.21 is: 459,240,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,508,935.21 : 1,913,263,427.40 = 306,160,551.21 : x
  2. Step 2: Convert to fraction form
    1,275,508,935.21/1,913,263,427.40 = 306,160,551.21/x
  3. Step 3: Cross multiply
    1,275,508,935.21x = 1,913,263,427.40 × 306,160,551.21
  4. Step 4: Simplify right side
    1,275,508,935.21x = 585,765,785,542,717,824
  5. Step 5: Solve for x
    x = 585,765,785,542,717,824/1,275,508,935.21
  6. Step 6: Final answer
    x = 459,240,832.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.