Home / 42,767,997.60-64,151,996.40-21,194,263.20

Finding the Fourth Proportional to 42,767,997.60, 64,151,996.40 and 21,194,263.20

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Solution

The fourth proportional to 42,767,997.60, 64,151,996.40 and 21,194,263.20 is: 31,791,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,767,997.60 : 64,151,996.40 = 21,194,263.20 : x
  2. Step 2: Convert to fraction form
    42,767,997.60/64,151,996.40 = 21,194,263.20/x
  3. Step 3: Cross multiply
    42,767,997.60x = 64,151,996.40 × 21,194,263.20
  4. Step 4: Simplify right side
    42,767,997.60x = 1,359,654,296,507,052.50
  5. Step 5: Solve for x
    x = 1,359,654,296,507,052.50/42,767,997.60
  6. Step 6: Final answer
    x = 31,791,394.80

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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.