Home / 258,947,928.80-388,571,192.40-97,505,727.20

Finding the Fourth Proportional to 258,947,928.80, 388,571,192.40 and 97,505,727.20

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Solution

The fourth proportional to 258,947,928.80, 388,571,192.40 and 97,505,727.20 is: 146,314,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,947,928.80 : 388,571,192.40 = 97,505,727.20 : x
  2. Step 2: Convert to fraction form
    258,947,928.80/388,571,192.40 = 97,505,727.20/x
  3. Step 3: Cross multiply
    258,947,928.80x = 388,571,192.40 × 97,505,727.20
  4. Step 4: Simplify right side
    258,947,928.80x = 37,887,916,683,933,112
  5. Step 5: Solve for x
    x = 37,887,916,683,933,112/258,947,928.80
  6. Step 6: Final answer
    x = 146,314,808.77

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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.