Finding the Fourth Proportional to 5,299,392,918.32, 7,313,163,378.80 and 2,888,075,982.03
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Solution
The fourth proportional to 5,299,392,918.32, 7,313,163,378.80 and 2,888,075,982.03 is: 3,985,545,482.76
Step by Step Solution
- Step 1: Write the proportion equation
5,299,392,918.32 : 7,313,163,378.80 = 2,888,075,982.03 : x - Step 2: Convert to fraction form
5,299,392,918.32/7,313,163,378.80 = 2,888,075,982.03/x - Step 3: Cross multiply
5,299,392,918.32x = 7,313,163,378.80 × 2,888,075,982.03 - Step 4: Simplify right side
5,299,392,918.32x = 21,120,971,506,973,646,848 - Step 5: Solve for x
x = 21,120,971,506,973,646,848/5,299,392,918.32 - Step 6: Final answer
x = 3,985,545,482.76
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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.