Home / 387,599,349.80-580,868,183.10-315,935,733.80

Finding the Fourth Proportional to 387,599,349.80, 580,868,183.10 and 315,935,733.80

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Solution

The fourth proportional to 387,599,349.80, 580,868,183.10 and 315,935,733.80 is: 473,470,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,599,349.80 : 580,868,183.10 = 315,935,733.80 : x
  2. Step 2: Convert to fraction form
    387,599,349.80/580,868,183.10 = 315,935,733.80/x
  3. Step 3: Cross multiply
    387,599,349.80x = 580,868,183.10 × 315,935,733.80
  4. Step 4: Simplify right side
    387,599,349.80x = 183,517,015,668,771,264
  5. Step 5: Solve for x
    x = 183,517,015,668,771,264/387,599,349.80
  6. Step 6: Final answer
    x = 473,470,906.91

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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.