Home / 383,472,919.20-575,209,378.80-319,699,999.20

Finding the Fourth Proportional to 383,472,919.20, 575,209,378.80 and 319,699,999.20

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Solution

The fourth proportional to 383,472,919.20, 575,209,378.80 and 319,699,999.20 is: 479,549,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,472,919.20 : 575,209,378.80 = 319,699,999.20 : x
  2. Step 2: Convert to fraction form
    383,472,919.20/575,209,378.80 = 319,699,999.20/x
  3. Step 3: Cross multiply
    383,472,919.20x = 575,209,378.80 × 319,699,999.20
  4. Step 4: Simplify right side
    383,472,919.20x = 183,894,437,942,192,480
  5. Step 5: Solve for x
    x = 183,894,437,942,192,480/383,472,919.20
  6. Step 6: Final answer
    x = 479,549,998.80

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1.5x scale

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.