Home / 383,470,915.20-575,206,372.80-319,697,995.20

Finding the Fourth Proportional to 383,470,915.20, 575,206,372.80 and 319,697,995.20

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Solution

The fourth proportional to 383,470,915.20, 575,206,372.80 and 319,697,995.20 is: 479,546,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,470,915.20 : 575,206,372.80 = 319,697,995.20 : x
  2. Step 2: Convert to fraction form
    383,470,915.20/575,206,372.80 = 319,697,995.20/x
  3. Step 3: Cross multiply
    383,470,915.20x = 575,206,372.80 × 319,697,995.20
  4. Step 4: Simplify right side
    383,470,915.20x = 183,892,324,210,423,776
  5. Step 5: Solve for x
    x = 183,892,324,210,423,776/383,470,915.20
  6. Step 6: Final answer
    x = 479,546,992.80

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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.