Home / 385,923,382.54-532,573,862.76-209,710,958.72

Finding the Fourth Proportional to 385,923,382.54, 532,573,862.76 and 209,710,958.72

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Solution

The fourth proportional to 385,923,382.54, 532,573,862.76 and 209,710,958.72 is: 289,400,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,923,382.54 : 532,573,862.76 = 209,710,958.72 : x
  2. Step 2: Convert to fraction form
    385,923,382.54/532,573,862.76 = 209,710,958.72/x
  3. Step 3: Cross multiply
    385,923,382.54x = 532,573,862.76 × 209,710,958.72
  4. Step 4: Simplify right side
    385,923,382.54x = 111,686,575,345,950,432
  5. Step 5: Solve for x
    x = 111,686,575,345,950,432/385,923,382.54
  6. Step 6: Final answer
    x = 289,400,902.87

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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.