Home / 139,615,222.62-192,666,656.61-76,897,161.06

Finding the Fourth Proportional to 139,615,222.62, 192,666,656.61 and 76,897,161.06

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Solution

The fourth proportional to 139,615,222.62, 192,666,656.61 and 76,897,161.06 is: 106,116,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,615,222.62 : 192,666,656.61 = 76,897,161.06 : x
  2. Step 2: Convert to fraction form
    139,615,222.62/192,666,656.61 = 76,897,161.06/x
  3. Step 3: Cross multiply
    139,615,222.62x = 192,666,656.61 × 76,897,161.06
  4. Step 4: Simplify right side
    139,615,222.62x = 14,815,518,924,230,886
  5. Step 5: Solve for x
    x = 14,815,518,924,230,886/139,615,222.62
  6. Step 6: Final answer
    x = 106,116,787.60

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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.