Home / 28,551,241.72-39,400,763.70-15,498,509.50

Finding the Fourth Proportional to 28,551,241.72, 39,400,763.70 and 15,498,509.50

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Solution

The fourth proportional to 28,551,241.72, 39,400,763.70 and 15,498,509.50 is: 21,387,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,241.72 : 39,400,763.70 = 15,498,509.50 : x
  2. Step 2: Convert to fraction form
    28,551,241.72/39,400,763.70 = 15,498,509.50/x
  3. Step 3: Cross multiply
    28,551,241.72x = 39,400,763.70 × 15,498,509.50
  4. Step 4: Simplify right side
    28,551,241.72x = 610,653,110,511,705.25
  5. Step 5: Solve for x
    x = 610,653,110,511,705.25/28,551,241.72
  6. Step 6: Final answer
    x = 21,387,970.32

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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.