Finding the Fourth Proportional to 216,665,538.86, 298,999,011.42 and 117,546,281.12
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Solution
The fourth proportional to 216,665,538.86, 298,999,011.42 and 117,546,281.12 is: 162,214,175.99
Step by Step Solution
- Step 1: Write the proportion equation
216,665,538.86 : 298,999,011.42 = 117,546,281.12 : x - Step 2: Convert to fraction form
216,665,538.86/298,999,011.42 = 117,546,281.12/x - Step 3: Cross multiply
216,665,538.86x = 298,999,011.42 × 117,546,281.12 - Step 4: Simplify right side
216,665,538.86x = 35,146,221,850,977,412 - Step 5: Solve for x
x = 35,146,221,850,977,412/216,665,538.86 - Step 6: Final answer
x = 162,214,175.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.