Home / 447,638,821.80-671,458,232.70-265,792,396.20

Finding the Fourth Proportional to 447,638,821.80, 671,458,232.70 and 265,792,396.20

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Solution

The fourth proportional to 447,638,821.80, 671,458,232.70 and 265,792,396.20 is: 398,688,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,638,821.80 : 671,458,232.70 = 265,792,396.20 : x
  2. Step 2: Convert to fraction form
    447,638,821.80/671,458,232.70 = 265,792,396.20/x
  3. Step 3: Cross multiply
    447,638,821.80x = 671,458,232.70 × 265,792,396.20
  4. Step 4: Simplify right side
    447,638,821.80x = 178,468,492,617,550,208
  5. Step 5: Solve for x
    x = 178,468,492,617,550,208/447,638,821.80
  6. Step 6: Final answer
    x = 398,688,594.30

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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.