Home / 384,368,305.80-576,552,458.70-319,745,080.20

Finding the Fourth Proportional to 384,368,305.80, 576,552,458.70 and 319,745,080.20

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Solution

The fourth proportional to 384,368,305.80, 576,552,458.70 and 319,745,080.20 is: 479,617,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,368,305.80 : 576,552,458.70 = 319,745,080.20 : x
  2. Step 2: Convert to fraction form
    384,368,305.80/576,552,458.70 = 319,745,080.20/x
  3. Step 3: Cross multiply
    384,368,305.80x = 576,552,458.70 × 319,745,080.20
  4. Step 4: Simplify right side
    384,368,305.80x = 184,349,812,146,538,688
  5. Step 5: Solve for x
    x = 184,349,812,146,538,688/384,368,305.80
  6. Step 6: Final answer
    x = 479,617,620.30

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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.