Finding the Fourth Proportional to 11,688,497.21, 16,130,148.05 and 6,531,858.77
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Solution
The fourth proportional to 11,688,497.21, 16,130,148.05 and 6,531,858.77 is: 9,013,977.34
Step by Step Solution
- Step 1: Write the proportion equation
11,688,497.21 : 16,130,148.05 = 6,531,858.77 : x - Step 2: Convert to fraction form
11,688,497.21/16,130,148.05 = 6,531,858.77/x - Step 3: Cross multiply
11,688,497.21x = 16,130,148.05 × 6,531,858.77 - Step 4: Simplify right side
11,688,497.21x = 105,359,849,001,790.89 - Step 5: Solve for x
x = 105,359,849,001,790.89/11,688,497.21 - Step 6: Final answer
x = 9,013,977.34
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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.