Home / 259,075,461.80-388,656,738.30-77,341,010.60

Finding the Fourth Proportional to 259,075,461.80, 388,656,738.30 and 77,341,010.60

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Solution

The fourth proportional to 259,075,461.80, 388,656,738.30 and 77,341,010.60 is: 116,024,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,075,461.80 : 388,656,738.30 = 77,341,010.60 : x
  2. Step 2: Convert to fraction form
    259,075,461.80/388,656,738.30 = 77,341,010.60/x
  3. Step 3: Cross multiply
    259,075,461.80x = 388,656,738.30 × 77,341,010.60
  4. Step 4: Simplify right side
    259,075,461.80x = 30,059,104,916,621,724
  5. Step 5: Solve for x
    x = 30,059,104,916,621,724/259,075,461.80
  6. Step 6: Final answer
    x = 116,024,515.44

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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.