Home / 132,210,155.20-198,315,232.80-80,477,982.40

Finding the Fourth Proportional to 132,210,155.20, 198,315,232.80 and 80,477,982.40

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Solution

The fourth proportional to 132,210,155.20, 198,315,232.80 and 80,477,982.40 is: 120,716,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,210,155.20 : 198,315,232.80 = 80,477,982.40 : x
  2. Step 2: Convert to fraction form
    132,210,155.20/198,315,232.80 = 80,477,982.40/x
  3. Step 3: Cross multiply
    132,210,155.20x = 198,315,232.80 × 80,477,982.40
  4. Step 4: Simplify right side
    132,210,155.20x = 15,960,009,814,930,304
  5. Step 5: Solve for x
    x = 15,960,009,814,930,304/132,210,155.20
  6. Step 6: Final answer
    x = 120,716,973.60

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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.