Finding the Fourth Proportional to 10,646,893.60, 15,949,345.20 and 6,374,370.40
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Solution
The fourth proportional to 10,646,893.60, 15,949,345.20 and 6,374,370.40 is: 9,548,985.63
Step by Step Solution
- Step 1: Write the proportion equation
10,646,893.60 : 15,949,345.20 = 6,374,370.40 : x - Step 2: Convert to fraction form
10,646,893.60/15,949,345.20 = 6,374,370.40/x - Step 3: Cross multiply
10,646,893.60x = 15,949,345.20 × 6,374,370.40 - Step 4: Simplify right side
10,646,893.60x = 101,667,033,942,262.08 - Step 5: Solve for x
x = 101,667,033,942,262.08/10,646,893.60 - Step 6: Final answer
x = 9,548,985.63
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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.