Finding the Fourth Proportional to 6,128,483.12, 8,458,226.14 and 4,655,968.54
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Solution
The fourth proportional to 6,128,483.12, 8,458,226.14 and 4,655,968.54 is: 6,425,935.10
Step by Step Solution
- Step 1: Write the proportion equation
6,128,483.12 : 8,458,226.14 = 4,655,968.54 : x - Step 2: Convert to fraction form
6,128,483.12/8,458,226.14 = 4,655,968.54/x - Step 3: Cross multiply
6,128,483.12x = 8,458,226.14 × 4,655,968.54 - Step 4: Simplify right side
6,128,483.12x = 39,381,234,812,045.64 - Step 5: Solve for x
x = 39,381,234,812,045.64/6,128,483.12 - Step 6: Final answer
x = 6,425,935.10
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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.