Home / 999,020,310.40-1,378,483,571.68-627,477,703.84

Finding the Fourth Proportional to 999,020,310.40, 1,378,483,571.68 and 627,477,703.84

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Solution

The fourth proportional to 999,020,310.40, 1,378,483,571.68 and 627,477,703.84 is: 865,815,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,020,310.40 : 1,378,483,571.68 = 627,477,703.84 : x
  2. Step 2: Convert to fraction form
    999,020,310.40/1,378,483,571.68 = 627,477,703.84/x
  3. Step 3: Cross multiply
    999,020,310.40x = 1,378,483,571.68 × 627,477,703.84
  4. Step 4: Simplify right side
    999,020,310.40x = 864,967,706,338,928,512
  5. Step 5: Solve for x
    x = 864,967,706,338,928,512/999,020,310.40
  6. Step 6: Final answer
    x = 865,815,937.21

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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.