Home / 790,928,576.17-1,185,562,376.22-266,115,489.72

Finding the Fourth Proportional to 790,928,576.17, 1,185,562,376.22 and 266,115,489.72

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Solution

The fourth proportional to 790,928,576.17, 1,185,562,376.22 and 266,115,489.72 is: 398,893,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,928,576.17 : 1,185,562,376.22 = 266,115,489.72 : x
  2. Step 2: Convert to fraction form
    790,928,576.17/1,185,562,376.22 = 266,115,489.72/x
  3. Step 3: Cross multiply
    790,928,576.17x = 1,185,562,376.22 × 266,115,489.72
  4. Step 4: Simplify right side
    790,928,576.17x = 315,496,512,337,185,856
  5. Step 5: Solve for x
    x = 315,496,512,337,185,856/790,928,576.17
  6. Step 6: Final answer
    x = 398,893,808.92

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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.