Finding the Fourth Proportional to 657,940,407.84, 985,872,379.68 and 242,845,902.72
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Solution
The fourth proportional to 657,940,407.84, 985,872,379.68 and 242,845,902.72 is: 363,885,642.46
Step by Step Solution
- Step 1: Write the proportion equation
657,940,407.84 : 985,872,379.68 = 242,845,902.72 : x - Step 2: Convert to fraction form
657,940,407.84/985,872,379.68 = 242,845,902.72/x - Step 3: Cross multiply
657,940,407.84x = 985,872,379.68 × 242,845,902.72 - Step 4: Simplify right side
657,940,407.84x = 239,415,068,010,104,160 - Step 5: Solve for x
x = 239,415,068,010,104,160/657,940,407.84 - Step 6: Final answer
x = 363,885,642.46
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1.5x scale
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.