Finding the Fourth Proportional to 5,621,804,188.60, 7,758,090,515.64 and 3,115,839,686.44
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Solution
The fourth proportional to 5,621,804,188.60, 7,758,090,515.64 and 3,115,839,686.44 is: 4,299,859,174.86
Step by Step Solution
- Step 1: Write the proportion equation
5,621,804,188.60 : 7,758,090,515.64 = 3,115,839,686.44 : x - Step 2: Convert to fraction form
5,621,804,188.60/7,758,090,515.64 = 3,115,839,686.44/x - Step 3: Cross multiply
5,621,804,188.60x = 7,758,090,515.64 × 3,115,839,686.44 - Step 4: Simplify right side
5,621,804,188.60x = 24,172,966,319,624,876,032 - Step 5: Solve for x
x = 24,172,966,319,624,876,032/5,621,804,188.60 - Step 6: Final answer
x = 4,299,859,174.86
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1.5x scale
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.