Home / 855,985,581.73-1,283,573,619.17-331,600,291.43

Finding the Fourth Proportional to 855,985,581.73, 1,283,573,619.17 and 331,600,291.43

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Solution

The fourth proportional to 855,985,581.73, 1,283,573,619.17 and 331,600,291.43 is: 497,243,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,985,581.73 : 1,283,573,619.17 = 331,600,291.43 : x
  2. Step 2: Convert to fraction form
    855,985,581.73/1,283,573,619.17 = 331,600,291.43/x
  3. Step 3: Cross multiply
    855,985,581.73x = 1,283,573,619.17 × 331,600,291.43
  4. Step 4: Simplify right side
    855,985,581.73x = 425,633,386,186,973,824
  5. Step 5: Solve for x
    x = 425,633,386,186,973,824/855,985,581.73
  6. Step 6: Final answer
    x = 497,243,639.70

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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.