Finding the Fourth Proportional to 7,447,420.18, 10,277,369.49 and 4,139,627.68
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Solution
The fourth proportional to 7,447,420.18, 10,277,369.49 and 4,139,627.68 is: 5,712,647.09
Step by Step Solution
- Step 1: Write the proportion equation
7,447,420.18 : 10,277,369.49 = 4,139,627.68 : x - Step 2: Convert to fraction form
7,447,420.18/10,277,369.49 = 4,139,627.68/x - Step 3: Cross multiply
7,447,420.18x = 10,277,369.49 × 4,139,627.68 - Step 4: Simplify right side
7,447,420.18x = 42,544,483,218,391.48 - Step 5: Solve for x
x = 42,544,483,218,391.48/7,447,420.18 - Step 6: Final answer
x = 5,712,647.09
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1.5x scale
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.