Home / 13,978,075.20-19,289,704.41-7,866,503.70

Finding the Fourth Proportional to 13,978,075.20, 19,289,704.41 and 7,866,503.70

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Solution

The fourth proportional to 13,978,075.20, 19,289,704.41 and 7,866,503.70 is: 10,855,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,978,075.20 : 19,289,704.41 = 7,866,503.70 : x
  2. Step 2: Convert to fraction form
    13,978,075.20/19,289,704.41 = 7,866,503.70/x
  3. Step 3: Cross multiply
    13,978,075.20x = 19,289,704.41 × 7,866,503.70
  4. Step 4: Simplify right side
    13,978,075.20x = 151,742,531,113,171.31
  5. Step 5: Solve for x
    x = 151,742,531,113,171.31/13,978,075.20
  6. Step 6: Final answer
    x = 10,855,752.95

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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.