Home / 1,306,631,024.64-1,960,233,523.20-386,435,624.40

Finding the Fourth Proportional to 1,306,631,024.64, 1,960,233,523.20 and 386,435,624.40

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Solution

The fourth proportional to 1,306,631,024.64, 1,960,233,523.20 and 386,435,624.40 is: 579,738,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,631,024.64 : 1,960,233,523.20 = 386,435,624.40 : x
  2. Step 2: Convert to fraction form
    1,306,631,024.64/1,960,233,523.20 = 386,435,624.40/x
  3. Step 3: Cross multiply
    1,306,631,024.64x = 1,960,233,523.20 × 386,435,624.40
  4. Step 4: Simplify right side
    1,306,631,024.64x = 757,504,065,507,603,840
  5. Step 5: Solve for x
    x = 757,504,065,507,603,840/1,306,631,024.64
  6. Step 6: Final answer
    x = 579,738,312.67

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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.