Home / 18,774,127.66-28,173,037.98-7,991,411.32

Finding the Fourth Proportional to 18,774,127.66, 28,173,037.98 and 7,991,411.32

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Solution

The fourth proportional to 18,774,127.66, 28,173,037.98 and 7,991,411.32 is: 11,992,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774,127.66 : 28,173,037.98 = 7,991,411.32 : x
  2. Step 2: Convert to fraction form
    18,774,127.66/28,173,037.98 = 7,991,411.32/x
  3. Step 3: Cross multiply
    18,774,127.66x = 28,173,037.98 × 7,991,411.32
  4. Step 4: Simplify right side
    18,774,127.66x = 225,142,334,632,161.94
  5. Step 5: Solve for x
    x = 225,142,334,632,161.94/18,774,127.66
  6. Step 6: Final answer
    x = 11,992,159.57

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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.