Home / 143,085,273.10-214,698,768.45-81,721,552.30

Finding the Fourth Proportional to 143,085,273.10, 214,698,768.45 and 81,721,552.30

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Solution

The fourth proportional to 143,085,273.10, 214,698,768.45 and 81,721,552.30 is: 122,622,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,085,273.10 : 214,698,768.45 = 81,721,552.30 : x
  2. Step 2: Convert to fraction form
    143,085,273.10/214,698,768.45 = 81,721,552.30/x
  3. Step 3: Cross multiply
    143,085,273.10x = 214,698,768.45 × 81,721,552.30
  4. Step 4: Simplify right side
    143,085,273.10x = 17,545,516,634,632,264
  5. Step 5: Solve for x
    x = 17,545,516,634,632,264/143,085,273.10
  6. Step 6: Final answer
    x = 122,622,798.66

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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.