Finding the Fourth Proportional to 19,706,557.20, 29,559,630.60 and 6,243,385.20
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Solution
The fourth proportional to 19,706,557.20, 29,559,630.60 and 6,243,385.20 is: 9,365,012.79
Step by Step Solution
- Step 1: Write the proportion equation
19,706,557.20 : 29,559,630.60 = 6,243,385.20 : x - Step 2: Convert to fraction form
19,706,557.20/29,559,630.60 = 6,243,385.20/x - Step 3: Cross multiply
19,706,557.20x = 29,559,630.60 × 6,243,385.20 - Step 4: Simplify right side
19,706,557.20x = 184,552,160,205,507.12 - Step 5: Solve for x
x = 184,552,160,205,507.12/19,706,557.20 - Step 6: Final answer
x = 9,365,012.79
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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.