Home / 638,258,899.75-956,047,606.36-404,969,528.85

Finding the Fourth Proportional to 638,258,899.75, 956,047,606.36 and 404,969,528.85

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Solution

The fourth proportional to 638,258,899.75, 956,047,606.36 and 404,969,528.85 is: 606,603,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,258,899.75 : 956,047,606.36 = 404,969,528.85 : x
  2. Step 2: Convert to fraction form
    638,258,899.75/956,047,606.36 = 404,969,528.85/x
  3. Step 3: Cross multiply
    638,258,899.75x = 956,047,606.36 × 404,969,528.85
  4. Step 4: Simplify right side
    638,258,899.75x = 387,170,148,705,779,520
  5. Step 5: Solve for x
    x = 387,170,148,705,779,520/638,258,899.75
  6. Step 6: Final answer
    x = 606,603,603.74

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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.