Home / 946,437,367.20-1,419,441,432.56-428,525,907.36

Finding the Fourth Proportional to 946,437,367.20, 1,419,441,432.56 and 428,525,907.36

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Solution

The fourth proportional to 946,437,367.20, 1,419,441,432.56 and 428,525,907.36 is: 642,691,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,437,367.20 : 1,419,441,432.56 = 428,525,907.36 : x
  2. Step 2: Convert to fraction form
    946,437,367.20/1,419,441,432.56 = 428,525,907.36/x
  3. Step 3: Cross multiply
    946,437,367.20x = 1,419,441,432.56 × 428,525,907.36
  4. Step 4: Simplify right side
    946,437,367.20x = 608,267,427,832,152,192
  5. Step 5: Solve for x
    x = 608,267,427,832,152,192/946,437,367.20
  6. Step 6: Final answer
    x = 642,691,686.65

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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.