Finding the Fourth Proportional to 1,200,508,586.84, 1,656,875,842.44 and 691,772,325.05
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Solution
The fourth proportional to 1,200,508,586.84, 1,656,875,842.44 and 691,772,325.05 is: 954,746,068.80
Step by Step Solution
- Step 1: Write the proportion equation
1,200,508,586.84 : 1,656,875,842.44 = 691,772,325.05 : x - Step 2: Convert to fraction form
1,200,508,586.84/1,656,875,842.44 = 691,772,325.05/x - Step 3: Cross multiply
1,200,508,586.84x = 1,656,875,842.44 × 691,772,325.05 - Step 4: Simplify right side
1,200,508,586.84x = 1,146,180,853,843,896,192 - Step 5: Solve for x
x = 1,146,180,853,843,896,192/1,200,508,586.84 - Step 6: Final answer
x = 954,746,068.80
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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.