Finding the Fourth Proportional to 38,768,486.88, 58,153,663.44 and 18,551,508.96
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Solution
The fourth proportional to 38,768,486.88, 58,153,663.44 and 18,551,508.96 is: 27,827,709.96
Step by Step Solution
- Step 1: Write the proportion equation
38,768,486.88 : 58,153,663.44 = 18,551,508.96 : x - Step 2: Convert to fraction form
38,768,486.88/58,153,663.44 = 18,551,508.96/x - Step 3: Cross multiply
38,768,486.88x = 58,153,663.44 × 18,551,508.96 - Step 4: Simplify right side
38,768,486.88x = 1,078,838,208,363,984.38 - Step 5: Solve for x
x = 1,078,838,208,363,984.38/38,768,486.88 - Step 6: Final answer
x = 27,827,709.96
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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.