Finding the Fourth Proportional to 543,077,070.36, 749,525,329.25 and 304,948,987.08
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Solution
The fourth proportional to 543,077,070.36, 749,525,329.25 and 304,948,987.08 is: 420,873,946.66
Step by Step Solution
- Step 1: Write the proportion equation
543,077,070.36 : 749,525,329.25 = 304,948,987.08 : x - Step 2: Convert to fraction form
543,077,070.36/749,525,329.25 = 304,948,987.08/x - Step 3: Cross multiply
543,077,070.36x = 749,525,329.25 × 304,948,987.08 - Step 4: Simplify right side
543,077,070.36x = 228,566,989,945,590,976 - Step 5: Solve for x
x = 228,566,989,945,590,976/543,077,070.36 - Step 6: Final answer
x = 420,873,946.66
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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.