Home / 387,088,711.40-580,633,067.10-347,673,722.60

Finding the Fourth Proportional to 387,088,711.40, 580,633,067.10 and 347,673,722.60

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Solution

The fourth proportional to 387,088,711.40, 580,633,067.10 and 347,673,722.60 is: 521,510,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,088,711.40 : 580,633,067.10 = 347,673,722.60 : x
  2. Step 2: Convert to fraction form
    387,088,711.40/580,633,067.10 = 347,673,722.60/x
  3. Step 3: Cross multiply
    387,088,711.40x = 580,633,067.10 × 347,673,722.60
  4. Step 4: Simplify right side
    387,088,711.40x = 201,870,859,903,312,608
  5. Step 5: Solve for x
    x = 201,870,859,903,312,608/387,088,711.40
  6. Step 6: Final answer
    x = 521,510,583.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.