Home / 81,919,191.03-122,877,944.93-47,353,598.90

Finding the Fourth Proportional to 81,919,191.03, 122,877,944.93 and 47,353,598.90

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Solution

The fourth proportional to 81,919,191.03, 122,877,944.93 and 47,353,598.90 is: 71,029,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919,191.03 : 122,877,944.93 = 47,353,598.90 : x
  2. Step 2: Convert to fraction form
    81,919,191.03/122,877,944.93 = 47,353,598.90/x
  3. Step 3: Cross multiply
    81,919,191.03x = 122,877,944.93 × 47,353,598.90
  4. Step 4: Simplify right side
    81,919,191.03x = 5,818,712,917,327,546
  5. Step 5: Solve for x
    x = 5,818,712,917,327,546/81,919,191.03
  6. Step 6: Final answer
    x = 71,029,911.85

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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.