Finding the Fourth Proportional to 8,889,803.70, 13,334,705.55 and 8,516,555.70
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Solution
The fourth proportional to 8,889,803.70, 13,334,705.55 and 8,516,555.70 is: 12,774,833.55
Step by Step Solution
- Step 1: Write the proportion equation
8,889,803.70 : 13,334,705.55 = 8,516,555.70 : x - Step 2: Convert to fraction form
8,889,803.70/13,334,705.55 = 8,516,555.70/x - Step 3: Cross multiply
8,889,803.70x = 13,334,705.55 × 8,516,555.70 - Step 4: Simplify right side
8,889,803.70x = 113,565,762,559,674.12 - Step 5: Solve for x
x = 113,565,762,559,674.12/8,889,803.70 - Step 6: Final answer
x = 12,774,833.55
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.