Home / 405,473,753,973.17-559,554,393,419.80-220,075,529,429.40

Finding the Fourth Proportional to 405,473,753,973.17, 559,554,393,419.80 and 220,075,529,429.40

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Solution

The fourth proportional to 405,473,753,973.17, 559,554,393,419.80 and 220,075,529,429.40 is: 303,704,563,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,473,753,973.17 : 559,554,393,419.80 = 220,075,529,429.40 : x
  2. Step 2: Convert to fraction form
    405,473,753,973.17/559,554,393,419.80 = 220,075,529,429.40/x
  3. Step 3: Cross multiply
    405,473,753,973.17x = 559,554,393,419.80 × 220,075,529,429.40
  4. Step 4: Simplify right side
    405,473,753,973.17x = 123,144,229,376,409,261,309,952
  5. Step 5: Solve for x
    x = 123,144,229,376,409,261,309,952/405,473,753,973.17
  6. Step 6: Final answer
    x = 303,704,563,291.06

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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.