Home / 491,656,214,768.64-678,109,913,703.84-423,182,305,857.36

Finding the Fourth Proportional to 491,656,214,768.64, 678,109,913,703.84 and 423,182,305,857.36

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Solution

The fourth proportional to 491,656,214,768.64, 678,109,913,703.84 and 423,182,305,857.36 is: 583,668,238,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,656,214,768.64 : 678,109,913,703.84 = 423,182,305,857.36 : x
  2. Step 2: Convert to fraction form
    491,656,214,768.64/678,109,913,703.84 = 423,182,305,857.36/x
  3. Step 3: Cross multiply
    491,656,214,768.64x = 678,109,913,703.84 × 423,182,305,857.36
  4. Step 4: Simplify right side
    491,656,214,768.64x = 286,964,116,905,926,391,234,560
  5. Step 5: Solve for x
    x = 286,964,116,905,926,391,234,560/491,656,214,768.64
  6. Step 6: Final answer
    x = 583,668,238,671.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.