Home / 647,230,897.91-970,864,435.49-210,531,584.16

Finding the Fourth Proportional to 647,230,897.91, 970,864,435.49 and 210,531,584.16

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Solution

The fourth proportional to 647,230,897.91, 970,864,435.49 and 210,531,584.16 is: 315,803,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,230,897.91 : 970,864,435.49 = 210,531,584.16 : x
  2. Step 2: Convert to fraction form
    647,230,897.91/970,864,435.49 = 210,531,584.16/x
  3. Step 3: Cross multiply
    647,230,897.91x = 970,864,435.49 × 210,531,584.16
  4. Step 4: Simplify right side
    647,230,897.91x = 204,397,627,607,261,152
  5. Step 5: Solve for x
    x = 204,397,627,607,261,152/647,230,897.91
  6. Step 6: Final answer
    x = 315,803,260.11

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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.