Home / 142,684,438.08-196,905,532.32-77,494,342.08

Finding the Fourth Proportional to 142,684,438.08, 196,905,532.32 and 77,494,342.08

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Solution

The fourth proportional to 142,684,438.08, 196,905,532.32 and 77,494,342.08 is: 106,942,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,438.08 : 196,905,532.32 = 77,494,342.08 : x
  2. Step 2: Convert to fraction form
    142,684,438.08/196,905,532.32 = 77,494,342.08/x
  3. Step 3: Cross multiply
    142,684,438.08x = 196,905,532.32 × 77,494,342.08
  4. Step 4: Simplify right side
    142,684,438.08x = 15,259,064,679,050,576
  5. Step 5: Solve for x
    x = 15,259,064,679,050,576/142,684,438.08
  6. Step 6: Final answer
    x = 106,942,739.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.