Home / 396,263,238.94-546,849,855.76-217,663,641.40

Finding the Fourth Proportional to 396,263,238.94, 546,849,855.76 and 217,663,641.40

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Solution

The fourth proportional to 396,263,238.94, 546,849,855.76 and 217,663,641.40 is: 300,379,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,263,238.94 : 546,849,855.76 = 217,663,641.40 : x
  2. Step 2: Convert to fraction form
    396,263,238.94/546,849,855.76 = 217,663,641.40/x
  3. Step 3: Cross multiply
    396,263,238.94x = 546,849,855.76 × 217,663,641.40
  4. Step 4: Simplify right side
    396,263,238.94x = 119,029,330,901,875,104
  5. Step 5: Solve for x
    x = 119,029,330,901,875,104/396,263,238.94
  6. Step 6: Final answer
    x = 300,379,442.77

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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.