Finding the Fourth Proportional to 65,186,435.80, 97,779,653.70 and 19,748,230.30
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Solution
The fourth proportional to 65,186,435.80, 97,779,653.70 and 19,748,230.30 is: 29,622,345.45
Step by Step Solution
- Step 1: Write the proportion equation
65,186,435.80 : 97,779,653.70 = 19,748,230.30 : x - Step 2: Convert to fraction form
65,186,435.80/97,779,653.70 = 19,748,230.30/x - Step 3: Cross multiply
65,186,435.80x = 97,779,653.70 × 19,748,230.30 - Step 4: Simplify right side
65,186,435.80x = 1,930,975,119,921,847.25 - Step 5: Solve for x
x = 1,930,975,119,921,847.25/65,186,435.80 - Step 6: Final answer
x = 29,622,345.45
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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.