Finding the Fourth Proportional to 976,349,596.84, 1,346,582,845.98 and 642,165,192.84
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Solution
The fourth proportional to 976,349,596.84, 1,346,582,845.98 and 642,165,192.84 is: 885,675,208.72
Step by Step Solution
- Step 1: Write the proportion equation
976,349,596.84 : 1,346,582,845.98 = 642,165,192.84 : x - Step 2: Convert to fraction form
976,349,596.84/1,346,582,845.98 = 642,165,192.84/x - Step 3: Cross multiply
976,349,596.84x = 1,346,582,845.98 × 642,165,192.84 - Step 4: Simplify right side
976,349,596.84x = 864,728,632,963,782,784 - Step 5: Solve for x
x = 864,728,632,963,782,784/976,349,596.84 - Step 6: Final answer
x = 885,675,208.72
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Double scale
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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.