Home / 661,972,372.02-913,521,830.09-383,675,320.76

Finding the Fourth Proportional to 661,972,372.02, 913,521,830.09 and 383,675,320.76

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Solution

The fourth proportional to 661,972,372.02, 913,521,830.09 and 383,675,320.76 is: 529,471,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972,372.02 : 913,521,830.09 = 383,675,320.76 : x
  2. Step 2: Convert to fraction form
    661,972,372.02/913,521,830.09 = 383,675,320.76/x
  3. Step 3: Cross multiply
    661,972,372.02x = 913,521,830.09 × 383,675,320.76
  4. Step 4: Simplify right side
    661,972,372.02x = 350,495,781,174,556,992
  5. Step 5: Solve for x
    x = 350,495,781,174,556,992/661,972,372.02
  6. Step 6: Final answer
    x = 529,471,917.54

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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.