Home / 28,618,533.15-39,489,991.15-19,346,277.80

Finding the Fourth Proportional to 28,618,533.15, 39,489,991.15 and 19,346,277.80

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Solution

The fourth proportional to 28,618,533.15, 39,489,991.15 and 19,346,277.80 is: 26,695,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618,533.15 : 39,489,991.15 = 19,346,277.80 : x
  2. Step 2: Convert to fraction form
    28,618,533.15/39,489,991.15 = 19,346,277.80/x
  3. Step 3: Cross multiply
    28,618,533.15x = 39,489,991.15 × 19,346,277.80
  4. Step 4: Simplify right side
    28,618,533.15x = 763,984,338,813,260.25
  5. Step 5: Solve for x
    x = 763,984,338,813,260.25/28,618,533.15
  6. Step 6: Final answer
    x = 26,695,440.15

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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.