Home / 215,476,394.52-297,358,332.48-121,391,670.30

Finding the Fourth Proportional to 215,476,394.52, 297,358,332.48 and 121,391,670.30

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Solution

The fourth proportional to 215,476,394.52, 297,358,332.48 and 121,391,670.30 is: 167,521,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,476,394.52 : 297,358,332.48 = 121,391,670.30 : x
  2. Step 2: Convert to fraction form
    215,476,394.52/297,358,332.48 = 121,391,670.30/x
  3. Step 3: Cross multiply
    215,476,394.52x = 297,358,332.48 × 121,391,670.30
  4. Step 4: Simplify right side
    215,476,394.52x = 36,096,824,657,369,944
  5. Step 5: Solve for x
    x = 36,096,824,657,369,944/215,476,394.52
  6. Step 6: Final answer
    x = 167,521,016.57

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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.