Home / 20,408,075.84-28,163,143.68-11,240,718.32

Finding the Fourth Proportional to 20,408,075.84, 28,163,143.68 and 11,240,718.32

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Solution

The fourth proportional to 20,408,075.84, 28,163,143.68 and 11,240,718.32 is: 15,512,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,075.84 : 28,163,143.68 = 11,240,718.32 : x
  2. Step 2: Convert to fraction form
    20,408,075.84/28,163,143.68 = 11,240,718.32/x
  3. Step 3: Cross multiply
    20,408,075.84x = 28,163,143.68 × 11,240,718.32
  4. Step 4: Simplify right side
    20,408,075.84x = 316,573,965,112,568.25
  5. Step 5: Solve for x
    x = 316,573,965,112,568.25/20,408,075.84
  6. Step 6: Final answer
    x = 15,512,190.74

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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.