Finding the Fourth Proportional to 721,916,682,377.08, 996,268,913,720.40 and 396,767,499,263.08
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Solution
The fourth proportional to 721,916,682,377.08, 996,268,913,720.40 and 396,767,499,263.08 is: 547,552,280,117.44
Step by Step Solution
- Step 1: Write the proportion equation
721,916,682,377.08 : 996,268,913,720.40 = 396,767,499,263.08 : x - Step 2: Convert to fraction form
721,916,682,377.08/996,268,913,720.40 = 396,767,499,263.08/x - Step 3: Cross multiply
721,916,682,377.08x = 996,268,913,720.40 × 396,767,499,263.08 - Step 4: Simplify right side
721,916,682,377.08x = 395,287,125,490,388,378,320,896 - Step 5: Solve for x
x = 395,287,125,490,388,378,320,896/721,916,682,377.08 - Step 6: Final answer
x = 547,552,280,117.44
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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.