Home / 238,171,815.38-515,920,415.88

Finding the Third Proportional to 238,171,815.38 and 515,920,415.88

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Solution

The third proportional to 238,171,815.38 and 515,920,415.88 is: 1,117,570,838.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,171,815.38 : 515,920,415.88 = 515,920,415.88 : x
  2. Step 2: Convert to fraction form
    238,171,815.38/515,920,415.88 = 515,920,415.88/x
  3. Step 3: Cross multiply
    238,171,815.38x = 515,920,415.88 × 515,920,415.88
  4. Step 4: Simplify right side
    238,171,815.38x = 266,173,875,516,632,960
  5. Step 5: Solve for x
    x = 266,173,875,516,632,960/238,171,815.38
  6. Step 6: Final answer
    x = 1,117,570,838.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.