Home / 215,946,412.80-323,667,676.80-86,490,009.60

Finding the Fourth Proportional to 215,946,412.80, 323,667,676.80 and 86,490,009.60

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Solution

The fourth proportional to 215,946,412.80, 323,667,676.80 and 86,490,009.60 is: 129,634,107.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,946,412.80 : 323,667,676.80 = 86,490,009.60 : x
  2. Step 2: Convert to fraction form
    215,946,412.80/323,667,676.80 = 86,490,009.60/x
  3. Step 3: Cross multiply
    215,946,412.80x = 323,667,676.80 × 86,490,009.60
  4. Step 4: Simplify right side
    215,946,412.80x = 27,994,020,473,641,696
  5. Step 5: Solve for x
    x = 27,994,020,473,641,696/215,946,412.80
  6. Step 6: Final answer
    x = 129,634,107.42

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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.