Home / 1,075,208,490.80-1,611,678,995.40-419,906,308.40

Finding the Fourth Proportional to 1,075,208,490.80, 1,611,678,995.40 and 419,906,308.40

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Solution

The fourth proportional to 1,075,208,490.80, 1,611,678,995.40 and 419,906,308.40 is: 629,416,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,208,490.80 : 1,611,678,995.40 = 419,906,308.40 : x
  2. Step 2: Convert to fraction form
    1,075,208,490.80/1,611,678,995.40 = 419,906,308.40/x
  3. Step 3: Cross multiply
    1,075,208,490.80x = 1,611,678,995.40 × 419,906,308.40
  4. Step 4: Simplify right side
    1,075,208,490.80x = 676,754,177,284,234,624
  5. Step 5: Solve for x
    x = 676,754,177,284,234,624/1,075,208,490.80
  6. Step 6: Final answer
    x = 629,416,697.39

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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.