Home / 215,876,992.80-297,910,642.08-118,091,848.80

Finding the Fourth Proportional to 215,876,992.80, 297,910,642.08 and 118,091,848.80

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Solution

The fourth proportional to 215,876,992.80, 297,910,642.08 and 118,091,848.80 is: 162,966,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,876,992.80 : 297,910,642.08 = 118,091,848.80 : x
  2. Step 2: Convert to fraction form
    215,876,992.80/297,910,642.08 = 118,091,848.80/x
  3. Step 3: Cross multiply
    215,876,992.80x = 297,910,642.08 × 118,091,848.80
  4. Step 4: Simplify right side
    215,876,992.80x = 35,180,818,500,422,276
  5. Step 5: Solve for x
    x = 35,180,818,500,422,276/215,876,992.80
  6. Step 6: Final answer
    x = 162,966,965.79

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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.