Home / 283,943,215.78-391,841,899.77-153,563,023.78

Finding the Fourth Proportional to 283,943,215.78, 391,841,899.77 and 153,563,023.78

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Solution

The fourth proportional to 283,943,215.78, 391,841,899.77 and 153,563,023.78 is: 211,917,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,943,215.78 : 391,841,899.77 = 153,563,023.78 : x
  2. Step 2: Convert to fraction form
    283,943,215.78/391,841,899.77 = 153,563,023.78/x
  3. Step 3: Cross multiply
    283,943,215.78x = 391,841,899.77 × 153,563,023.78
  4. Step 4: Simplify right side
    283,943,215.78x = 60,172,426,972,380,888
  5. Step 5: Solve for x
    x = 60,172,426,972,380,888/283,943,215.78
  6. Step 6: Final answer
    x = 211,917,114.51

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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.