Finding the Fourth Proportional to 13,513,278.24, 18,648,627.12 and 7,711,944.48
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Solution
The fourth proportional to 13,513,278.24, 18,648,627.12 and 7,711,944.48 is: 10,642,656.39
Step by Step Solution
- Step 1: Write the proportion equation
13,513,278.24 : 18,648,627.12 = 7,711,944.48 : x - Step 2: Convert to fraction form
13,513,278.24/18,648,627.12 = 7,711,944.48/x - Step 3: Cross multiply
13,513,278.24x = 18,648,627.12 × 7,711,944.48 - Step 4: Simplify right side
13,513,278.24x = 143,817,176,977,662.31 - Step 5: Solve for x
x = 143,817,176,977,662.31/13,513,278.24 - Step 6: Final answer
x = 10,642,656.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.