Home / 405,473,753,963.43-559,554,393,406.14-220,075,529,419.65

Finding the Fourth Proportional to 405,473,753,963.43, 559,554,393,406.14 and 220,075,529,419.65

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Solution

The fourth proportional to 405,473,753,963.43, 559,554,393,406.14 and 220,075,529,419.65 is: 303,704,563,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,473,753,963.43 : 559,554,393,406.14 = 220,075,529,419.65 : x
  2. Step 2: Convert to fraction form
    405,473,753,963.43/559,554,393,406.14 = 220,075,529,419.65/x
  3. Step 3: Cross multiply
    405,473,753,963.43x = 559,554,393,406.14 × 220,075,529,419.65
  4. Step 4: Simplify right side
    405,473,753,963.43x = 123,144,229,367,947,370,430,464
  5. Step 5: Solve for x
    x = 123,144,229,367,947,370,430,464/405,473,753,963.43
  6. Step 6: Final answer
    x = 303,704,563,277.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.