Finding the Fourth Proportional to 78,727,365.08, 118,077,588.46 and 21,206,184.14
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Solution
The fourth proportional to 78,727,365.08, 118,077,588.46 and 21,206,184.14 is: 31,805,650.82
Step by Step Solution
- Step 1: Write the proportion equation
78,727,365.08 : 118,077,588.46 = 21,206,184.14 : x - Step 2: Convert to fraction form
78,727,365.08/118,077,588.46 = 21,206,184.14/x - Step 3: Cross multiply
78,727,365.08x = 118,077,588.46 × 21,206,184.14 - Step 4: Simplify right side
78,727,365.08x = 2,503,975,083,892,210 - Step 5: Solve for x
x = 2,503,975,083,892,210/78,727,365.08 - Step 6: Final answer
x = 31,805,650.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.