Home / 651,775,318.82-899,466,986.55-354,434,951.30

Finding the Fourth Proportional to 651,775,318.82, 899,466,986.55 and 354,434,951.30

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Solution

The fourth proportional to 651,775,318.82, 899,466,986.55 and 354,434,951.30 is: 489,129,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,775,318.82 : 899,466,986.55 = 354,434,951.30 : x
  2. Step 2: Convert to fraction form
    651,775,318.82/899,466,986.55 = 354,434,951.30/x
  3. Step 3: Cross multiply
    651,775,318.82x = 899,466,986.55 × 354,434,951.30
  4. Step 4: Simplify right side
    651,775,318.82x = 318,802,537,573,806,976
  5. Step 5: Solve for x
    x = 318,802,537,573,806,976/651,775,318.82
  6. Step 6: Final answer
    x = 489,129,502.71

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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.