Home / 128,525,758.00-177,370,631.63-72,010,991.44

Finding the Fourth Proportional to 128,525,758.00, 177,370,631.63 and 72,010,991.44

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Solution

The fourth proportional to 128,525,758.00, 177,370,631.63 and 72,010,991.44 is: 99,378,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,525,758.00 : 177,370,631.63 = 72,010,991.44 : x
  2. Step 2: Convert to fraction form
    128,525,758.00/177,370,631.63 = 72,010,991.44/x
  3. Step 3: Cross multiply
    128,525,758.00x = 177,370,631.63 × 72,010,991.44
  4. Step 4: Simplify right side
    128,525,758.00x = 12,772,635,035,554,736
  5. Step 5: Solve for x
    x = 12,772,635,035,554,736/128,525,758.00
  6. Step 6: Final answer
    x = 99,378,017.56

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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.