Home / 603,612,245.40-905,418,368.10-439,078,111.80

Finding the Fourth Proportional to 603,612,245.40, 905,418,368.10 and 439,078,111.80

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Solution

The fourth proportional to 603,612,245.40, 905,418,368.10 and 439,078,111.80 is: 658,617,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,612,245.40 : 905,418,368.10 = 439,078,111.80 : x
  2. Step 2: Convert to fraction form
    603,612,245.40/905,418,368.10 = 439,078,111.80/x
  3. Step 3: Cross multiply
    603,612,245.40x = 905,418,368.10 × 439,078,111.80
  4. Step 4: Simplify right side
    603,612,245.40x = 397,549,387,454,385,344
  5. Step 5: Solve for x
    x = 397,549,387,454,385,344/603,612,245.40
  6. Step 6: Final answer
    x = 658,617,167.70

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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.