Home / 281,581,989.60-388,583,982.64-156,143,022.52

Finding the Fourth Proportional to 281,581,989.60, 388,583,982.64 and 156,143,022.52

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Solution

The fourth proportional to 281,581,989.60, 388,583,982.64 and 156,143,022.52 is: 215,477,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,581,989.60 : 388,583,982.64 = 156,143,022.52 : x
  2. Step 2: Convert to fraction form
    281,581,989.60/388,583,982.64 = 156,143,022.52/x
  3. Step 3: Cross multiply
    281,581,989.60x = 388,583,982.64 × 156,143,022.52
  4. Step 4: Simplify right side
    281,581,989.60x = 60,674,677,552,268,808
  5. Step 5: Solve for x
    x = 60,674,677,552,268,808/281,581,989.60
  6. Step 6: Final answer
    x = 215,477,835.21

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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.