Home / 638,258,900.25-956,047,607.10-404,969,529.35

Finding the Fourth Proportional to 638,258,900.25, 956,047,607.10 and 404,969,529.35

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Solution

The fourth proportional to 638,258,900.25, 956,047,607.10 and 404,969,529.35 is: 606,603,604.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,258,900.25 : 956,047,607.10 = 404,969,529.35 : x
  2. Step 2: Convert to fraction form
    638,258,900.25/956,047,607.10 = 404,969,529.35/x
  3. Step 3: Cross multiply
    638,258,900.25x = 956,047,607.10 × 404,969,529.35
  4. Step 4: Simplify right side
    638,258,900.25x = 387,170,149,483,480,768
  5. Step 5: Solve for x
    x = 387,170,149,483,480,768/638,258,900.25
  6. Step 6: Final answer
    x = 606,603,604.48

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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.