Finding the Fourth Proportional to 155,542,492.96, 214,654,779.84 and 89,462,885.68
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Solution
The fourth proportional to 155,542,492.96, 214,654,779.84 and 89,462,885.68 is: 123,462,313.51
Step by Step Solution
- Step 1: Write the proportion equation
155,542,492.96 : 214,654,779.84 = 89,462,885.68 : x - Step 2: Convert to fraction form
155,542,492.96/214,654,779.84 = 89,462,885.68/x - Step 3: Cross multiply
155,542,492.96x = 214,654,779.84 × 89,462,885.68 - Step 4: Simplify right side
155,542,492.96x = 19,203,636,029,491,492 - Step 5: Solve for x
x = 19,203,636,029,491,492/155,542,492.96 - Step 6: Final answer
x = 123,462,313.51
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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.