Finding the Fourth Proportional to 8,889,780.45, 13,334,670.68 and 8,541,415.65
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Solution
The fourth proportional to 8,889,780.45, 13,334,670.68 and 8,541,415.65 is: 12,812,123.48
Step by Step Solution
- Step 1: Write the proportion equation
8,889,780.45 : 13,334,670.68 = 8,541,415.65 : x - Step 2: Convert to fraction form
8,889,780.45/13,334,670.68 = 8,541,415.65/x - Step 3: Cross multiply
8,889,780.45x = 13,334,670.68 × 8,541,415.65 - Step 4: Simplify right side
8,889,780.45x = 113,896,964,791,041.08 - Step 5: Solve for x
x = 113,896,964,791,041.08/8,889,780.45 - Step 6: Final answer
x = 12,812,123.48
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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.