Finding the Fourth Proportional to 621,228,680,622.50, 931,019,257,465.60 and 319,029,075,209.99
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Solution
The fourth proportional to 621,228,680,622.50, 931,019,257,465.60 and 319,029,075,209.99 is: 478,120,572,949.58
Step by Step Solution
- Step 1: Write the proportion equation
621,228,680,622.50 : 931,019,257,465.60 = 319,029,075,209.99 : x - Step 2: Convert to fraction form
621,228,680,622.50/931,019,257,465.60 = 319,029,075,209.99/x - Step 3: Cross multiply
621,228,680,622.50x = 931,019,257,465.60 × 319,029,075,209.99 - Step 4: Simplify right side
621,228,680,622.50x = 297,022,212,711,941,922,619,392 - Step 5: Solve for x
x = 297,022,212,711,941,922,619,392/621,228,680,622.50 - Step 6: Final answer
x = 478,120,572,949.58
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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.