Home / 1,907,171,389.70-2,860,757,084.55-1,390,610,737.70

Finding the Fourth Proportional to 1,907,171,389.70, 2,860,757,084.55 and 1,390,610,737.70

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Solution

The fourth proportional to 1,907,171,389.70, 2,860,757,084.55 and 1,390,610,737.70 is: 2,085,916,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,171,389.70 : 2,860,757,084.55 = 1,390,610,737.70 : x
  2. Step 2: Convert to fraction form
    1,907,171,389.70/2,860,757,084.55 = 1,390,610,737.70/x
  3. Step 3: Cross multiply
    1,907,171,389.70x = 2,860,757,084.55 × 1,390,610,737.70
  4. Step 4: Simplify right side
    1,907,171,389.70x = 3,978,199,519,726,577,152
  5. Step 5: Solve for x
    x = 3,978,199,519,726,577,152/1,907,171,389.70
  6. Step 6: Final answer
    x = 2,085,916,106.55

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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.