Home / 638,258,904.32-956,047,613.12-404,969,533.36

Finding the Fourth Proportional to 638,258,904.32, 956,047,613.12 and 404,969,533.36

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Solution

The fourth proportional to 638,258,904.32, 956,047,613.12 and 404,969,533.36 is: 606,603,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,258,904.32 : 956,047,613.12 = 404,969,533.36 : x
  2. Step 2: Convert to fraction form
    638,258,904.32/956,047,613.12 = 404,969,533.36/x
  3. Step 3: Cross multiply
    638,258,904.32x = 956,047,613.12 × 404,969,533.36
  4. Step 4: Simplify right side
    638,258,904.32x = 387,170,155,755,148,224
  5. Step 5: Solve for x
    x = 387,170,155,755,148,224/638,258,904.32
  6. Step 6: Final answer
    x = 606,603,610.44

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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.