Home / 289,093,076.93-433,656,436.47-81,814,147.40

Finding the Fourth Proportional to 289,093,076.93, 433,656,436.47 and 81,814,147.40

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Solution

The fourth proportional to 289,093,076.93, 433,656,436.47 and 81,814,147.40 is: 122,725,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,093,076.93 : 433,656,436.47 = 81,814,147.40 : x
  2. Step 2: Convert to fraction form
    289,093,076.93/433,656,436.47 = 81,814,147.40/x
  3. Step 3: Cross multiply
    289,093,076.93x = 433,656,436.47 × 81,814,147.40
  4. Step 4: Simplify right side
    289,093,076.93x = 35,479,231,615,092,656
  5. Step 5: Solve for x
    x = 35,479,231,615,092,656/289,093,076.93
  6. Step 6: Final answer
    x = 122,725,981.51

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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.