Finding the Fourth Proportional to 7,021,430.22, 9,688,893.84 and 4,407,098.62
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Solution
The fourth proportional to 7,021,430.22, 9,688,893.84 and 4,407,098.62 is: 6,081,369.37
Step by Step Solution
- Step 1: Write the proportion equation
7,021,430.22 : 9,688,893.84 = 4,407,098.62 : x - Step 2: Convert to fraction form
7,021,430.22/9,688,893.84 = 4,407,098.62/x - Step 3: Cross multiply
7,021,430.22x = 9,688,893.84 × 4,407,098.62 - Step 4: Simplify right side
7,021,430.22x = 42,699,910,671,590.50 - Step 5: Solve for x
x = 42,699,910,671,590.50/7,021,430.22 - Step 6: Final answer
x = 6,081,369.37
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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.