Finding the Fourth Proportional to 4,615,220,136.16, 6,371,199,768.63 and 3,091,931,199.51
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Solution
The fourth proportional to 4,615,220,136.16, 6,371,199,768.63 and 3,091,931,199.51 is: 4,268,336,235.71
Step by Step Solution
- Step 1: Write the proportion equation
4,615,220,136.16 : 6,371,199,768.63 = 3,091,931,199.51 : x - Step 2: Convert to fraction form
4,615,220,136.16/6,371,199,768.63 = 3,091,931,199.51/x - Step 3: Cross multiply
4,615,220,136.16x = 6,371,199,768.63 × 3,091,931,199.51 - Step 4: Simplify right side
4,615,220,136.16x = 19,699,311,342,937,993,216 - Step 5: Solve for x
x = 19,699,311,342,937,993,216/4,615,220,136.16 - Step 6: Final answer
x = 4,268,336,235.71
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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.