Home / 383,471,128.20-575,206,692.30-319,698,208.20

Finding the Fourth Proportional to 383,471,128.20, 575,206,692.30 and 319,698,208.20

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Solution

The fourth proportional to 383,471,128.20, 575,206,692.30 and 319,698,208.20 is: 479,547,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,471,128.20 : 575,206,692.30 = 319,698,208.20 : x
  2. Step 2: Convert to fraction form
    383,471,128.20/575,206,692.30 = 319,698,208.20/x
  3. Step 3: Cross multiply
    383,471,128.20x = 575,206,692.30 × 319,698,208.20
  4. Step 4: Simplify right side
    383,471,128.20x = 183,892,548,872,958,720
  5. Step 5: Solve for x
    x = 183,892,548,872,958,720/383,471,128.20
  6. Step 6: Final answer
    x = 479,547,312.30

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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.