Finding the Fourth Proportional to 1,057,808,231.20, 1,586,712,346.80 and 367,486,055.20
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Solution
The fourth proportional to 1,057,808,231.20, 1,586,712,346.80 and 367,486,055.20 is: 551,229,082.80
Step by Step Solution
- Step 1: Write the proportion equation
1,057,808,231.20 : 1,586,712,346.80 = 367,486,055.20 : x - Step 2: Convert to fraction form
1,057,808,231.20/1,586,712,346.80 = 367,486,055.20/x - Step 3: Cross multiply
1,057,808,231.20x = 1,586,712,346.80 × 367,486,055.20 - Step 4: Simplify right side
1,057,808,231.20x = 583,094,661,062,666,368 - Step 5: Solve for x
x = 583,094,661,062,666,368/1,057,808,231.20 - Step 6: Final answer
x = 551,229,082.80
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Double scale
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Similar ratio
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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.