Home / 86,362,979.45-129,567,190.73-31,036,403.79

Finding the Fourth Proportional to 86,362,979.45, 129,567,190.73 and 31,036,403.79

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Solution

The fourth proportional to 86,362,979.45, 129,567,190.73 and 31,036,403.79 is: 46,562,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,362,979.45 : 129,567,190.73 = 31,036,403.79 : x
  2. Step 2: Convert to fraction form
    86,362,979.45/129,567,190.73 = 31,036,403.79/x
  3. Step 3: Cross multiply
    86,362,979.45x = 129,567,190.73 × 31,036,403.79
  4. Step 4: Simplify right side
    86,362,979.45x = 4,021,299,649,277,042.50
  5. Step 5: Solve for x
    x = 4,021,299,649,277,042.50/86,362,979.45
  6. Step 6: Final answer
    x = 46,562,771.17

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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.