Finding the Fourth Proportional to 13,119,755.76, 18,104,130.18 and 8,473,746.42
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Solution
The fourth proportional to 13,119,755.76, 18,104,130.18 and 8,473,746.42 is: 11,693,038.43
Step by Step Solution
- Step 1: Write the proportion equation
13,119,755.76 : 18,104,130.18 = 8,473,746.42 : x - Step 2: Convert to fraction form
13,119,755.76/18,104,130.18 = 8,473,746.42/x - Step 3: Cross multiply
13,119,755.76x = 18,104,130.18 × 8,473,746.42 - Step 4: Simplify right side
13,119,755.76x = 153,409,808,299,988.94 - Step 5: Solve for x
x = 153,409,808,299,988.94/13,119,755.76 - Step 6: Final answer
x = 11,693,038.43
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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.