Home / 630,212,021.20-946,291,241.40-343,557,557.20

Finding the Fourth Proportional to 630,212,021.20, 946,291,241.40 and 343,557,557.20

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Solution

The fourth proportional to 630,212,021.20, 946,291,241.40 and 343,557,557.20 is: 515,866,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,212,021.20 : 946,291,241.40 = 343,557,557.20 : x
  2. Step 2: Convert to fraction form
    630,212,021.20/946,291,241.40 = 343,557,557.20/x
  3. Step 3: Cross multiply
    630,212,021.20x = 946,291,241.40 × 343,557,557.20
  4. Step 4: Simplify right side
    630,212,021.20x = 325,105,507,295,139,520
  5. Step 5: Solve for x
    x = 325,105,507,295,139,520/630,212,021.20
  6. Step 6: Final answer
    x = 515,866,877.11

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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.