Home / 142,684,399.46-196,905,479.02-77,494,303.46

Finding the Fourth Proportional to 142,684,399.46, 196,905,479.02 and 77,494,303.46

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Solution

The fourth proportional to 142,684,399.46, 196,905,479.02 and 77,494,303.46 is: 106,942,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,399.46 : 196,905,479.02 = 77,494,303.46 : x
  2. Step 2: Convert to fraction form
    142,684,399.46/196,905,479.02 = 77,494,303.46/x
  3. Step 3: Cross multiply
    142,684,399.46x = 196,905,479.02 × 77,494,303.46
  4. Step 4: Simplify right side
    142,684,399.46x = 15,259,052,942,934,280
  5. Step 5: Solve for x
    x = 15,259,052,942,934,280/142,684,399.46
  6. Step 6: Final answer
    x = 106,942,686.10

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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.