Home / 72,933,076.81-100,646,461.75-39,893,036.94

Finding the Fourth Proportional to 72,933,076.81, 100,646,461.75 and 39,893,036.94

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Solution

The fourth proportional to 72,933,076.81, 100,646,461.75 and 39,893,036.94 is: 55,051,743.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933,076.81 : 100,646,461.75 = 39,893,036.94 : x
  2. Step 2: Convert to fraction form
    72,933,076.81/100,646,461.75 = 39,893,036.94/x
  3. Step 3: Cross multiply
    72,933,076.81x = 100,646,461.75 × 39,893,036.94
  4. Step 4: Simplify right side
    72,933,076.81x = 4,015,093,016,473,047
  5. Step 5: Solve for x
    x = 4,015,093,016,473,047/72,933,076.81
  6. Step 6: Final answer
    x = 55,051,743.22

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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.