Home / 215,900,016.05-297,916,417.98-121,808,677.65

Finding the Fourth Proportional to 215,900,016.05, 297,916,417.98 and 121,808,677.65

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Solution

The fourth proportional to 215,900,016.05, 297,916,417.98 and 121,808,677.65 is: 168,081,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,900,016.05 : 297,916,417.98 = 121,808,677.65 : x
  2. Step 2: Convert to fraction form
    215,900,016.05/297,916,417.98 = 121,808,677.65/x
  3. Step 3: Cross multiply
    215,900,016.05x = 297,916,417.98 × 121,808,677.65
  4. Step 4: Simplify right side
    215,900,016.05x = 36,288,804,924,368,488
  5. Step 5: Solve for x
    x = 36,288,804,924,368,488/215,900,016.05
  6. Step 6: Final answer
    x = 168,081,529.54

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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.