Finding the Fourth Proportional to 10,398,909.60, 14,354,102.88 and 7,146,490.68
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Solution
The fourth proportional to 10,398,909.60, 14,354,102.88 and 7,146,490.68 is: 9,864,636.43
Step by Step Solution
- Step 1: Write the proportion equation
10,398,909.60 : 14,354,102.88 = 7,146,490.68 : x - Step 2: Convert to fraction form
10,398,909.60/14,354,102.88 = 7,146,490.68/x - Step 3: Cross multiply
10,398,909.60x = 14,354,102.88 × 7,146,490.68 - Step 4: Simplify right side
10,398,909.60x = 102,581,462,451,681.16 - Step 5: Solve for x
x = 102,581,462,451,681.16/10,398,909.60 - Step 6: Final answer
x = 9,864,636.43
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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.