Home / 380,492,796-525,062,486.64-215,481,546.72

Finding the Fourth Proportional to 380,492,796, 525,062,486.64 and 215,481,546.72

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Solution

The fourth proportional to 380,492,796, 525,062,486.64 and 215,481,546.72 is: 297,354,583.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,492,796 : 525,062,486.64 = 215,481,546.72 : x
  2. Step 2: Convert to fraction form
    380,492,796/525,062,486.64 = 215,481,546.72/x
  3. Step 3: Cross multiply
    380,492,796x = 525,062,486.64 × 215,481,546.72
  4. Step 4: Simplify right side
    380,492,796x = 113,141,276,745,836,528
  5. Step 5: Solve for x
    x = 113,141,276,745,836,528/380,492,796
  6. Step 6: Final answer
    x = 297,354,583.15

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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.