Finding the Fourth Proportional to 869,017,602.24, 1,198,950,809.76 and 492,633,838.08
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Solution
The fourth proportional to 869,017,602.24, 1,198,950,809.76 and 492,633,838.08 is: 679,668,326.12
Step by Step Solution
- Step 1: Write the proportion equation
869,017,602.24 : 1,198,950,809.76 = 492,633,838.08 : x - Step 2: Convert to fraction form
869,017,602.24/1,198,950,809.76 = 492,633,838.08/x - Step 3: Cross multiply
869,017,602.24x = 1,198,950,809.76 × 492,633,838.08 - Step 4: Simplify right side
869,017,602.24x = 590,643,739,081,192,704 - Step 5: Solve for x
x = 590,643,739,081,192,704/869,017,602.24 - Step 6: Final answer
x = 679,668,326.12
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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.