Home / 281,566,918,859.76-388,569,712,264.20-153,115,880,084.64

Finding the Fourth Proportional to 281,566,918,859.76, 388,569,712,264.20 and 153,115,880,084.64

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Solution

The fourth proportional to 281,566,918,859.76, 388,569,712,264.20 and 153,115,880,084.64 is: 211,303,919,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,566,918,859.76 : 388,569,712,264.20 = 153,115,880,084.64 : x
  2. Step 2: Convert to fraction form
    281,566,918,859.76/388,569,712,264.20 = 153,115,880,084.64/x
  3. Step 3: Cross multiply
    281,566,918,859.76x = 388,569,712,264.20 × 153,115,880,084.64
  4. Step 4: Simplify right side
    281,566,918,859.76x = 59,496,193,467,568,321,724,416
  5. Step 5: Solve for x
    x = 59,496,193,467,568,321,724,416/281,566,918,859.76
  6. Step 6: Final answer
    x = 211,303,919,183.78

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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.