Home / 375,651,669,959.90-518,370,854,882.55-210,821,354,961.40

Finding the Fourth Proportional to 375,651,669,959.90, 518,370,854,882.55 and 210,821,354,961.40

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Solution

The fourth proportional to 375,651,669,959.90, 518,370,854,882.55 and 210,821,354,961.40 is: 290,917,503,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,651,669,959.90 : 518,370,854,882.55 = 210,821,354,961.40 : x
  2. Step 2: Convert to fraction form
    375,651,669,959.90/518,370,854,882.55 = 210,821,354,961.40/x
  3. Step 3: Cross multiply
    375,651,669,959.90x = 518,370,854,882.55 × 210,821,354,961.40
  4. Step 4: Simplify right side
    375,651,669,959.90x = 109,283,645,998,838,436,593,664
  5. Step 5: Solve for x
    x = 109,283,645,998,838,436,593,664/375,651,669,959.90
  6. Step 6: Final answer
    x = 290,917,503,469.38

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1.5x scale

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.