Finding the Fourth Proportional to 19,413,406.86, 26,791,062.12 and 10,712,139.99
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Solution
The fourth proportional to 19,413,406.86, 26,791,062.12 and 10,712,139.99 is: 14,783,062.55
Step by Step Solution
- Step 1: Write the proportion equation
19,413,406.86 : 26,791,062.12 = 10,712,139.99 : x - Step 2: Convert to fraction form
19,413,406.86/26,791,062.12 = 10,712,139.99/x - Step 3: Cross multiply
19,413,406.86x = 26,791,062.12 × 10,712,139.99 - Step 4: Simplify right side
19,413,406.86x = 286,989,607,910,226.19 - Step 5: Solve for x
x = 286,989,607,910,226.19/19,413,406.86 - Step 6: Final answer
x = 14,783,062.55
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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.