Finding the Fourth Proportional to 7,613,460.52, 10,506,656.80 and 4,128,805.68
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Solution
The fourth proportional to 7,613,460.52, 10,506,656.80 and 4,128,805.68 is: 5,697,795.92
Step by Step Solution
- Step 1: Write the proportion equation
7,613,460.52 : 10,506,656.80 = 4,128,805.68 : x - Step 2: Convert to fraction form
7,613,460.52/10,506,656.80 = 4,128,805.68/x - Step 3: Cross multiply
7,613,460.52x = 10,506,656.80 × 4,128,805.68 - Step 4: Simplify right side
7,613,460.52x = 43,379,944,273,650.62 - Step 5: Solve for x
x = 43,379,944,273,650.62/7,613,460.52 - Step 6: Final answer
x = 5,697,795.92
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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.