Finding the Fourth Proportional to 8,675,582.55, 12,935,811.90 and 8,437,228.17
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Solution
The fourth proportional to 8,675,582.55, 12,935,811.90 and 8,437,228.17 is: 12,580,411.28
Step by Step Solution
- Step 1: Write the proportion equation
8,675,582.55 : 12,935,811.90 = 8,437,228.17 : x - Step 2: Convert to fraction form
8,675,582.55/12,935,811.90 = 8,437,228.17/x - Step 3: Cross multiply
8,675,582.55x = 12,935,811.90 × 8,437,228.17 - Step 4: Simplify right side
8,675,582.55x = 109,142,396,564,501.22 - Step 5: Solve for x
x = 109,142,396,564,501.22/8,675,582.55 - Step 6: Final answer
x = 12,580,411.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.