Home / 342,139,218.80-512,075,087.40-314,929,439.60

Finding the Fourth Proportional to 342,139,218.80, 512,075,087.40 and 314,929,439.60

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Solution

The fourth proportional to 342,139,218.80, 512,075,087.40 and 314,929,439.60 is: 471,350,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,139,218.80 : 512,075,087.40 = 314,929,439.60 : x
  2. Step 2: Convert to fraction form
    342,139,218.80/512,075,087.40 = 314,929,439.60/x
  3. Step 3: Cross multiply
    342,139,218.80x = 512,075,087.40 × 314,929,439.60
  4. Step 4: Simplify right side
    342,139,218.80x = 161,267,520,308,003,040
  5. Step 5: Solve for x
    x = 161,267,520,308,003,040/342,139,218.80
  6. Step 6: Final answer
    x = 471,350,583.17

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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.