Home / 638,258,908.32-956,047,619.12-404,969,537.36

Finding the Fourth Proportional to 638,258,908.32, 956,047,619.12 and 404,969,537.36

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Solution

The fourth proportional to 638,258,908.32, 956,047,619.12 and 404,969,537.36 is: 606,603,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,258,908.32 : 956,047,619.12 = 404,969,537.36 : x
  2. Step 2: Convert to fraction form
    638,258,908.32/956,047,619.12 = 404,969,537.36/x
  3. Step 3: Cross multiply
    638,258,908.32x = 956,047,619.12 × 404,969,537.36
  4. Step 4: Simplify right side
    638,258,908.32x = 387,170,162,009,155,904
  5. Step 5: Solve for x
    x = 387,170,162,009,155,904/638,258,908.32
  6. Step 6: Final answer
    x = 606,603,616.44

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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.