Finding the Fourth Proportional to 864,388,705.62, 1,296,179,392.77 and 311,618,332.02
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Solution
The fourth proportional to 864,388,705.62, 1,296,179,392.77 and 311,618,332.02 is: 467,281,973.66
Step by Step Solution
- Step 1: Write the proportion equation
864,388,705.62 : 1,296,179,392.77 = 311,618,332.02 : x - Step 2: Convert to fraction form
864,388,705.62/1,296,179,392.77 = 311,618,332.02/x - Step 3: Cross multiply
864,388,705.62x = 1,296,179,392.77 × 311,618,332.02 - Step 4: Simplify right side
864,388,705.62x = 403,913,260,373,683,840 - Step 5: Solve for x
x = 403,913,260,373,683,840/864,388,705.62 - Step 6: Final answer
x = 467,281,973.66
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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.