Finding the Fourth Proportional to 216,387,408.48, 298,621,845.36 and 118,602,515.04
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Solution
The fourth proportional to 216,387,408.48, 298,621,845.36 and 118,602,515.04 is: 163,675,428.96
Step by Step Solution
- Step 1: Write the proportion equation
216,387,408.48 : 298,621,845.36 = 118,602,515.04 : x - Step 2: Convert to fraction form
216,387,408.48/298,621,845.36 = 118,602,515.04/x - Step 3: Cross multiply
216,387,408.48x = 298,621,845.36 × 118,602,515.04 - Step 4: Simplify right side
216,387,408.48x = 35,417,301,905,581,956 - Step 5: Solve for x
x = 35,417,301,905,581,956/216,387,408.48 - Step 6: Final answer
x = 163,675,428.96
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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.