Home / 19,157,539.80-28,736,309.70-7,792,138.20

Finding the Fourth Proportional to 19,157,539.80, 28,736,309.70 and 7,792,138.20

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Solution

The fourth proportional to 19,157,539.80, 28,736,309.70 and 7,792,138.20 is: 11,688,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,539.80 : 28,736,309.70 = 7,792,138.20 : x
  2. Step 2: Convert to fraction form
    19,157,539.80/28,736,309.70 = 7,792,138.20/x
  3. Step 3: Cross multiply
    19,157,539.80x = 28,736,309.70 × 7,792,138.20
  4. Step 4: Simplify right side
    19,157,539.80x = 223,917,296,540,400.53
  5. Step 5: Solve for x
    x = 223,917,296,540,400.53/19,157,539.80
  6. Step 6: Final answer
    x = 11,688,207.30

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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.