Home / 1,075,208,603.80-1,611,679,164.90-419,906,421.40

Finding the Fourth Proportional to 1,075,208,603.80, 1,611,679,164.90 and 419,906,421.40

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Solution

The fourth proportional to 1,075,208,603.80, 1,611,679,164.90 and 419,906,421.40 is: 629,416,866.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,208,603.80 : 1,611,679,164.90 = 419,906,421.40 : x
  2. Step 2: Convert to fraction form
    1,075,208,603.80/1,611,679,164.90 = 419,906,421.40/x
  3. Step 3: Cross multiply
    1,075,208,603.80x = 1,611,679,164.90 × 419,906,421.40
  4. Step 4: Simplify right side
    1,075,208,603.80x = 676,754,430,578,099,456
  5. Step 5: Solve for x
    x = 676,754,430,578,099,456/1,075,208,603.80
  6. Step 6: Final answer
    x = 629,416,866.82

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1.5x scale

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.