Home / 354,326,647.10-531,489,970.65-318,613,811.90

Finding the Fourth Proportional to 354,326,647.10, 531,489,970.65 and 318,613,811.90

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Solution

The fourth proportional to 354,326,647.10, 531,489,970.65 and 318,613,811.90 is: 477,920,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,326,647.10 : 531,489,970.65 = 318,613,811.90 : x
  2. Step 2: Convert to fraction form
    354,326,647.10/531,489,970.65 = 318,613,811.90/x
  3. Step 3: Cross multiply
    354,326,647.10x = 531,489,970.65 × 318,613,811.90
  4. Step 4: Simplify right side
    354,326,647.10x = 169,340,045,535,415,616
  5. Step 5: Solve for x
    x = 169,340,045,535,415,616/354,326,647.10
  6. Step 6: Final answer
    x = 477,920,717.85

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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.