Finding the Fourth Proportional to 2,991,834,965.70, 4,487,752,448.55 and 810,801,101.70
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Solution
The fourth proportional to 2,991,834,965.70, 4,487,752,448.55 and 810,801,101.70 is: 1,216,201,652.55
Step by Step Solution
- Step 1: Write the proportion equation
2,991,834,965.70 : 4,487,752,448.55 = 810,801,101.70 : x - Step 2: Convert to fraction form
2,991,834,965.70/4,487,752,448.55 = 810,801,101.70/x - Step 3: Cross multiply
2,991,834,965.70x = 4,487,752,448.55 × 810,801,101.70 - Step 4: Simplify right side
2,991,834,965.70x = 3,638,674,629,441,212,928 - Step 5: Solve for x
x = 3,638,674,629,441,212,928/2,991,834,965.70 - Step 6: Final answer
x = 1,216,201,652.55
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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.