Home / 126,368,000.30-189,552,000.45-103,409,749.10

Finding the Fourth Proportional to 126,368,000.30, 189,552,000.45 and 103,409,749.10

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Solution

The fourth proportional to 126,368,000.30, 189,552,000.45 and 103,409,749.10 is: 155,114,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,368,000.30 : 189,552,000.45 = 103,409,749.10 : x
  2. Step 2: Convert to fraction form
    126,368,000.30/189,552,000.45 = 103,409,749.10/x
  3. Step 3: Cross multiply
    126,368,000.30x = 189,552,000.45 × 103,409,749.10
  4. Step 4: Simplify right side
    126,368,000.30x = 19,601,524,807,937,584
  5. Step 5: Solve for x
    x = 19,601,524,807,937,584/126,368,000.30
  6. Step 6: Final answer
    x = 155,114,623.65

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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.