Finding the Fourth Proportional to 9,781,878.60, 14,675,442.30 and 8,724,245.40
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Solution
The fourth proportional to 9,781,878.60, 14,675,442.30 and 8,724,245.40 is: 13,088,708.75
Step by Step Solution
- Step 1: Write the proportion equation
9,781,878.60 : 14,675,442.30 = 8,724,245.40 : x - Step 2: Convert to fraction form
9,781,878.60/14,675,442.30 = 8,724,245.40/x - Step 3: Cross multiply
9,781,878.60x = 14,675,442.30 × 8,724,245.40 - Step 4: Simplify right side
9,781,878.60x = 128,032,159,978,740.44 - Step 5: Solve for x
x = 128,032,159,978,740.44/9,781,878.60 - Step 6: Final answer
x = 13,088,708.75
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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.