Home / 930,708,099.91-1,284,376,864.59-513,027,360.37

Finding the Fourth Proportional to 930,708,099.91, 1,284,376,864.59 and 513,027,360.37

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Solution

The fourth proportional to 930,708,099.91, 1,284,376,864.59 and 513,027,360.37 is: 707,977,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,708,099.91 : 1,284,376,864.59 = 513,027,360.37 : x
  2. Step 2: Convert to fraction form
    930,708,099.91/1,284,376,864.59 = 513,027,360.37/x
  3. Step 3: Cross multiply
    930,708,099.91x = 1,284,376,864.59 × 513,027,360.37
  4. Step 4: Simplify right side
    930,708,099.91x = 658,920,472,560,904,576
  5. Step 5: Solve for x
    x = 658,920,472,560,904,576/930,708,099.91
  6. Step 6: Final answer
    x = 707,977,584.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.