Home / 391,140,583,246.40-586,710,874,869.60-388,661,092,116.80

Finding the Fourth Proportional to 391,140,583,246.40, 586,710,874,869.60 and 388,661,092,116.80

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Solution

The fourth proportional to 391,140,583,246.40, 586,710,874,869.60 and 388,661,092,116.80 is: 582,991,638,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,140,583,246.40 : 586,710,874,869.60 = 388,661,092,116.80 : x
  2. Step 2: Convert to fraction form
    391,140,583,246.40/586,710,874,869.60 = 388,661,092,116.80/x
  3. Step 3: Cross multiply
    391,140,583,246.40x = 586,710,874,869.60 × 388,661,092,116.80
  4. Step 4: Simplify right side
    391,140,583,246.40x = 228,031,689,383,621,917,933,568
  5. Step 5: Solve for x
    x = 228,031,689,383,621,917,933,568/391,140,583,246.40
  6. Step 6: Final answer
    x = 582,991,638,175.20

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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.