Home / 126,615,800.80-189,923,701.20-106,208,466.40

Finding the Fourth Proportional to 126,615,800.80, 189,923,701.20 and 106,208,466.40

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Solution

The fourth proportional to 126,615,800.80, 189,923,701.20 and 106,208,466.40 is: 159,312,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,615,800.80 : 189,923,701.20 = 106,208,466.40 : x
  2. Step 2: Convert to fraction form
    126,615,800.80/189,923,701.20 = 106,208,466.40/x
  3. Step 3: Cross multiply
    126,615,800.80x = 189,923,701.20 × 106,208,466.40
  4. Step 4: Simplify right side
    126,615,800.80x = 20,171,505,037,463,840
  5. Step 5: Solve for x
    x = 20,171,505,037,463,840/126,615,800.80
  6. Step 6: Final answer
    x = 159,312,699.60

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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.