Home / 585,724,255-808,297,254.57-321,410,671.21

Finding the Fourth Proportional to 585,724,255, 808,297,254.57 and 321,410,671.21

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Solution

The fourth proportional to 585,724,255, 808,297,254.57 and 321,410,671.21 is: 443,545,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,724,255 : 808,297,254.57 = 321,410,671.21 : x
  2. Step 2: Convert to fraction form
    585,724,255/808,297,254.57 = 321,410,671.21/x
  3. Step 3: Cross multiply
    585,724,255x = 808,297,254.57 × 321,410,671.21
  4. Step 4: Simplify right side
    585,724,255x = 259,795,363,128,543,936
  5. Step 5: Solve for x
    x = 259,795,363,128,543,936/585,724,255
  6. Step 6: Final answer
    x = 443,545,509.53

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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.