Home / 126,368,000.80-189,552,001.20-103,409,749.60

Finding the Fourth Proportional to 126,368,000.80, 189,552,001.20 and 103,409,749.60

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Solution

The fourth proportional to 126,368,000.80, 189,552,001.20 and 103,409,749.60 is: 155,114,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,368,000.80 : 189,552,001.20 = 103,409,749.60 : x
  2. Step 2: Convert to fraction form
    126,368,000.80/189,552,001.20 = 103,409,749.60/x
  3. Step 3: Cross multiply
    126,368,000.80x = 189,552,001.20 × 103,409,749.60
  4. Step 4: Simplify right side
    126,368,000.80x = 19,601,524,980,270,896
  5. Step 5: Solve for x
    x = 19,601,524,980,270,896/126,368,000.80
  6. Step 6: Final answer
    x = 155,114,624.40

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1.5x scale

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.