Finding the Fourth Proportional to 10,985,157.12, 16,478,420.79 and 2,898,140.51
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Solution
The fourth proportional to 10,985,157.12, 16,478,420.79 and 2,898,140.51 is: 4,347,391.52
Step by Step Solution
- Step 1: Write the proportion equation
10,985,157.12 : 16,478,420.79 = 2,898,140.51 : x - Step 2: Convert to fraction form
10,985,157.12/16,478,420.79 = 2,898,140.51/x - Step 3: Cross multiply
10,985,157.12x = 16,478,420.79 × 2,898,140.51 - Step 4: Simplify right side
10,985,157.12x = 47,756,778,884,389.28 - Step 5: Solve for x
x = 47,756,778,884,389.28/10,985,157.12 - Step 6: Final answer
x = 4,347,391.52
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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.