Finding the Fourth Proportional to 16,390,646.60, 24,585,969.90 and 7,887,590.60
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Solution
The fourth proportional to 16,390,646.60, 24,585,969.90 and 7,887,590.60 is: 11,831,385.90
Step by Step Solution
- Step 1: Write the proportion equation
16,390,646.60 : 24,585,969.90 = 7,887,590.60 : x - Step 2: Convert to fraction form
16,390,646.60/24,585,969.90 = 7,887,590.60/x - Step 3: Cross multiply
16,390,646.60x = 24,585,969.90 × 7,887,590.60 - Step 4: Simplify right side
16,390,646.60x = 193,924,065,075,122.91 - Step 5: Solve for x
x = 193,924,065,075,122.91/16,390,646.60 - Step 6: Final answer
x = 11,831,385.90
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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.