Home / 104,978,716.90-157,468,075.35-66,431,529.70

Finding the Fourth Proportional to 104,978,716.90, 157,468,075.35 and 66,431,529.70

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Solution

The fourth proportional to 104,978,716.90, 157,468,075.35 and 66,431,529.70 is: 99,647,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978,716.90 : 157,468,075.35 = 66,431,529.70 : x
  2. Step 2: Convert to fraction form
    104,978,716.90/157,468,075.35 = 66,431,529.70/x
  3. Step 3: Cross multiply
    104,978,716.90x = 157,468,075.35 × 66,431,529.70
  4. Step 4: Simplify right side
    104,978,716.90x = 10,460,845,124,415,362
  5. Step 5: Solve for x
    x = 10,460,845,124,415,362/104,978,716.90
  6. Step 6: Final answer
    x = 99,647,294.55

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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.