Finding the Fourth Proportional to 7,121,511.93, 9,817,925.63 and 4,506,715.29
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Solution
The fourth proportional to 7,121,511.93, 9,817,925.63 and 4,506,715.29 is: 6,213,090.14
Step by Step Solution
- Step 1: Write the proportion equation
7,121,511.93 : 9,817,925.63 = 4,506,715.29 : x - Step 2: Convert to fraction form
7,121,511.93/9,817,925.63 = 4,506,715.29/x - Step 3: Cross multiply
7,121,511.93x = 9,817,925.63 × 4,506,715.29 - Step 4: Simplify right side
7,121,511.93x = 44,246,595,503,714.26 - Step 5: Solve for x
x = 44,246,595,503,714.26/7,121,511.93 - Step 6: Final answer
x = 6,213,090.14
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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.