Home / 354,326,745.60-531,490,118.40-318,613,910.40

Finding the Fourth Proportional to 354,326,745.60, 531,490,118.40 and 318,613,910.40

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Solution

The fourth proportional to 354,326,745.60, 531,490,118.40 and 318,613,910.40 is: 477,920,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,326,745.60 : 531,490,118.40 = 318,613,910.40 : x
  2. Step 2: Convert to fraction form
    354,326,745.60/531,490,118.40 = 318,613,910.40/x
  3. Step 3: Cross multiply
    354,326,745.60x = 531,490,118.40 × 318,613,910.40
  4. Step 4: Simplify right side
    354,326,745.60x = 169,340,144,962,382,976
  5. Step 5: Solve for x
    x = 169,340,144,962,382,976/354,326,745.60
  6. Step 6: Final answer
    x = 477,920,865.60

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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.