Home / 318,075,557.70-476,833,400.55-215,507,007.30

Finding the Fourth Proportional to 318,075,557.70, 476,833,400.55 and 215,507,007.30

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Solution

The fourth proportional to 318,075,557.70, 476,833,400.55 and 215,507,007.30 is: 323,070,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,075,557.70 : 476,833,400.55 = 215,507,007.30 : x
  2. Step 2: Convert to fraction form
    318,075,557.70/476,833,400.55 = 215,507,007.30/x
  3. Step 3: Cross multiply
    318,075,557.70x = 476,833,400.55 × 215,507,007.30
  4. Step 4: Simplify right side
    318,075,557.70x = 102,760,939,133,212,688
  5. Step 5: Solve for x
    x = 102,760,939,133,212,688/318,075,557.70
  6. Step 6: Final answer
    x = 323,070,844.79

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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.