Home / 885,139,650.63-1,221,652,650.56-527,930,350.47

Finding the Fourth Proportional to 885,139,650.63, 1,221,652,650.56 and 527,930,350.47

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Solution

The fourth proportional to 885,139,650.63, 1,221,652,650.56 and 527,930,350.47 is: 728,639,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,139,650.63 : 1,221,652,650.56 = 527,930,350.47 : x
  2. Step 2: Convert to fraction form
    885,139,650.63/1,221,652,650.56 = 527,930,350.47/x
  3. Step 3: Cross multiply
    885,139,650.63x = 1,221,652,650.56 × 527,930,350.47
  4. Step 4: Simplify right side
    885,139,650.63x = 644,947,511,960,105,600
  5. Step 5: Solve for x
    x = 644,947,511,960,105,600/885,139,650.63
  6. Step 6: Final answer
    x = 728,639,273.48

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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.