Finding the Fourth Proportional to 13,013,972.64, 19,501,776.84 and 7,248,769.68
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Solution
The fourth proportional to 13,013,972.64, 19,501,776.84 and 7,248,769.68 is: 10,862,470.10
Step by Step Solution
- Step 1: Write the proportion equation
13,013,972.64 : 19,501,776.84 = 7,248,769.68 : x - Step 2: Convert to fraction form
13,013,972.64/19,501,776.84 = 7,248,769.68/x - Step 3: Cross multiply
13,013,972.64x = 19,501,776.84 × 7,248,769.68 - Step 4: Simplify right side
13,013,972.64x = 141,363,888,663,918.22 - Step 5: Solve for x
x = 141,363,888,663,918.22/13,013,972.64 - Step 6: Final answer
x = 10,862,470.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.