Home / 211,597,331.72-291,977,876.49-117,498,684.68

Finding the Fourth Proportional to 211,597,331.72, 291,977,876.49 and 117,498,684.68

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Solution

The fourth proportional to 211,597,331.72, 291,977,876.49 and 117,498,684.68 is: 162,133,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,597,331.72 : 291,977,876.49 = 117,498,684.68 : x
  2. Step 2: Convert to fraction form
    211,597,331.72/291,977,876.49 = 117,498,684.68/x
  3. Step 3: Cross multiply
    211,597,331.72x = 291,977,876.49 × 117,498,684.68
  4. Step 4: Simplify right side
    211,597,331.72x = 34,307,016,441,774,608
  5. Step 5: Solve for x
    x = 34,307,016,441,774,608/211,597,331.72
  6. Step 6: Final answer
    x = 162,133,502.17

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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.