Home / 84,007,580.80-125,869,653.60-40,783,712.80

Finding the Fourth Proportional to 84,007,580.80, 125,869,653.60 and 40,783,712.80

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Solution

The fourth proportional to 84,007,580.80, 125,869,653.60 and 40,783,712.80 is: 61,106,768.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,007,580.80 : 125,869,653.60 = 40,783,712.80 : x
  2. Step 2: Convert to fraction form
    84,007,580.80/125,869,653.60 = 40,783,712.80/x
  3. Step 3: Cross multiply
    84,007,580.80x = 125,869,653.60 × 40,783,712.80
  4. Step 4: Simplify right side
    84,007,580.80x = 5,133,431,802,657,885
  5. Step 5: Solve for x
    x = 5,133,431,802,657,885/84,007,580.80
  6. Step 6: Final answer
    x = 61,106,768.62

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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.