Finding the Fourth Proportional to 13,506,997.04, 18,639,661.68 and 7,312,043.60
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Solution
The fourth proportional to 13,506,997.04, 18,639,661.68 and 7,312,043.60 is: 10,090,623.29
Step by Step Solution
- Step 1: Write the proportion equation
13,506,997.04 : 18,639,661.68 = 7,312,043.60 : x - Step 2: Convert to fraction form
13,506,997.04/18,639,661.68 = 7,312,043.60/x - Step 3: Cross multiply
13,506,997.04x = 18,639,661.68 × 7,312,043.60 - Step 4: Simplify right side
13,506,997.04x = 136,294,018,893,409.23 - Step 5: Solve for x
x = 136,294,018,893,409.23/13,506,997.04 - Step 6: Final answer
x = 10,090,623.29
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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.