Home / 86,940,172.80-130,410,259.20-61,431,004.80

Finding the Fourth Proportional to 86,940,172.80, 130,410,259.20 and 61,431,004.80

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Solution

The fourth proportional to 86,940,172.80, 130,410,259.20 and 61,431,004.80 is: 92,146,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,940,172.80 : 130,410,259.20 = 61,431,004.80 : x
  2. Step 2: Convert to fraction form
    86,940,172.80/130,410,259.20 = 61,431,004.80/x
  3. Step 3: Cross multiply
    86,940,172.80x = 130,410,259.20 × 61,431,004.80
  4. Step 4: Simplify right side
    86,940,172.80x = 8,011,233,258,884,444
  5. Step 5: Solve for x
    x = 8,011,233,258,884,444/86,940,172.80
  6. Step 6: Final answer
    x = 92,146,507.20

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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.