Finding the Fourth Proportional to 15,455,460.16, 21,328,840.08 and 8,486,076.75
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Solution
The fourth proportional to 15,455,460.16, 21,328,840.08 and 8,486,076.75 is: 11,710,953.41
Step by Step Solution
- Step 1: Write the proportion equation
15,455,460.16 : 21,328,840.08 = 8,486,076.75 : x - Step 2: Convert to fraction form
15,455,460.16/21,328,840.08 = 8,486,076.75/x - Step 3: Cross multiply
15,455,460.16x = 21,328,840.08 × 8,486,076.75 - Step 4: Simplify right side
15,455,460.16x = 180,998,173,827,372.97 - Step 5: Solve for x
x = 180,998,173,827,372.97/15,455,460.16 - Step 6: Final answer
x = 11,710,953.41
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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.