Finding the Fourth Proportional to 558,899,407.68, 771,258,727.20 and 304,575,363.75
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Solution
The fourth proportional to 558,899,407.68, 771,258,727.20 and 304,575,363.75 is: 420,301,764.78
Step by Step Solution
- Step 1: Write the proportion equation
558,899,407.68 : 771,258,727.20 = 304,575,363.75 : x - Step 2: Convert to fraction form
558,899,407.68/771,258,727.20 = 304,575,363.75/x - Step 3: Cross multiply
558,899,407.68x = 771,258,727.20 × 304,575,363.75 - Step 4: Simplify right side
558,899,407.68x = 234,906,407,382,302,048 - Step 5: Solve for x
x = 234,906,407,382,302,048/558,899,407.68 - Step 6: Final answer
x = 420,301,764.78
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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.