Home / 142,684,399.58-196,905,479.19-77,494,303.58

Finding the Fourth Proportional to 142,684,399.58, 196,905,479.19 and 77,494,303.58

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Solution

The fourth proportional to 142,684,399.58, 196,905,479.19 and 77,494,303.58 is: 106,942,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,399.58 : 196,905,479.19 = 77,494,303.58 : x
  2. Step 2: Convert to fraction form
    142,684,399.58/196,905,479.19 = 77,494,303.58/x
  3. Step 3: Cross multiply
    142,684,399.58x = 196,905,479.19 × 77,494,303.58
  4. Step 4: Simplify right side
    142,684,399.58x = 15,259,052,980,915,232
  5. Step 5: Solve for x
    x = 15,259,052,980,915,232/142,684,399.58
  6. Step 6: Final answer
    x = 106,942,686.28

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Why These Related Problems?

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