Finding the Fourth Proportional to 38,238,446.80, 52,768,389.48 and 20,834,936.08
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Solution
The fourth proportional to 38,238,446.80, 52,768,389.48 and 20,834,936.08 is: 28,751,848.31
Step by Step Solution
- Step 1: Write the proportion equation
38,238,446.80 : 52,768,389.48 = 20,834,936.08 : x - Step 2: Convert to fraction form
38,238,446.80/52,768,389.48 = 20,834,936.08/x - Step 3: Cross multiply
38,238,446.80x = 52,768,389.48 × 20,834,936.08 - Step 4: Simplify right side
38,238,446.80x = 1,099,426,021,860,344.25 - Step 5: Solve for x
x = 1,099,426,021,860,344.25/38,238,446.80 - Step 6: Final answer
x = 28,751,848.31
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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.