Home / 259,111,876.54-388,667,814.80-86,588,690.02

Finding the Fourth Proportional to 259,111,876.54, 388,667,814.80 and 86,588,690.02

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Solution

The fourth proportional to 259,111,876.54, 388,667,814.80 and 86,588,690.02 is: 129,883,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,111,876.54 : 388,667,814.80 = 86,588,690.02 : x
  2. Step 2: Convert to fraction form
    259,111,876.54/388,667,814.80 = 86,588,690.02/x
  3. Step 3: Cross multiply
    259,111,876.54x = 388,667,814.80 × 86,588,690.02
  4. Step 4: Simplify right side
    259,111,876.54x = 33,654,236,937,736,632
  5. Step 5: Solve for x
    x = 33,654,236,937,736,632/259,111,876.54
  6. Step 6: Final answer
    x = 129,883,035.03

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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.