Home / 133,091,538.40-199,301,384.40-87,405,983.20

Finding the Fourth Proportional to 133,091,538.40, 199,301,384.40 and 87,405,983.20

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Solution

The fourth proportional to 133,091,538.40, 199,301,384.40 and 87,405,983.20 is: 130,888,362.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091,538.40 : 199,301,384.40 = 87,405,983.20 : x
  2. Step 2: Convert to fraction form
    133,091,538.40/199,301,384.40 = 87,405,983.20/x
  3. Step 3: Cross multiply
    133,091,538.40x = 199,301,384.40 × 87,405,983.20
  4. Step 4: Simplify right side
    133,091,538.40x = 17,420,133,456,603,144
  5. Step 5: Solve for x
    x = 17,420,133,456,603,144/133,091,538.40
  6. Step 6: Final answer
    x = 130,888,362.00

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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.