Finding the Fourth Proportional to 7,382,191.29, 10,187,513.65 and 4,285,432.09
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Solution
The fourth proportional to 7,382,191.29, 10,187,513.65 and 4,285,432.09 is: 5,913,948.34
Step by Step Solution
- Step 1: Write the proportion equation
7,382,191.29 : 10,187,513.65 = 4,285,432.09 : x - Step 2: Convert to fraction form
7,382,191.29/10,187,513.65 = 4,285,432.09/x - Step 3: Cross multiply
7,382,191.29x = 10,187,513.65 × 4,285,432.09 - Step 4: Simplify right side
7,382,191.29x = 43,657,897,913,023.03 - Step 5: Solve for x
x = 43,657,897,913,023.03/7,382,191.29 - Step 6: Final answer
x = 5,913,948.34
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1.5x scale
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.