Home / 152,929,570,979.69-211,043,017,249.14-83,405,379,928.54

Finding the Fourth Proportional to 152,929,570,979.69, 211,043,017,249.14 and 83,405,379,928.54

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Solution

The fourth proportional to 152,929,570,979.69, 211,043,017,249.14 and 83,405,379,928.54 is: 115,099,538,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,929,570,979.69 : 211,043,017,249.14 = 83,405,379,928.54 : x
  2. Step 2: Convert to fraction form
    152,929,570,979.69/211,043,017,249.14 = 83,405,379,928.54/x
  3. Step 3: Cross multiply
    152,929,570,979.69x = 211,043,017,249.14 × 83,405,379,928.54
  4. Step 4: Simplify right side
    152,929,570,979.69x = 17,602,123,034,929,943,019,520
  5. Step 5: Solve for x
    x = 17,602,123,034,929,943,019,520/152,929,570,979.69
  6. Step 6: Final answer
    x = 115,099,538,448.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.