Home / 651,775,279.93-899,466,933.17-354,434,912.40

Finding the Fourth Proportional to 651,775,279.93, 899,466,933.17 and 354,434,912.40

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Solution

The fourth proportional to 651,775,279.93, 899,466,933.17 and 354,434,912.40 is: 489,129,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,775,279.93 : 899,466,933.17 = 354,434,912.40 : x
  2. Step 2: Convert to fraction form
    651,775,279.93/899,466,933.17 = 354,434,912.40/x
  3. Step 3: Cross multiply
    651,775,279.93x = 899,466,933.17 × 354,434,912.40
  4. Step 4: Simplify right side
    651,775,279.93x = 318,802,483,664,805,568
  5. Step 5: Solve for x
    x = 318,802,483,664,805,568/651,775,279.93
  6. Step 6: Final answer
    x = 489,129,449.19

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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.