Finding the Fourth Proportional to 15,004,726.68, 20,706,543.36 and 8,129,208.96
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Solution
The fourth proportional to 15,004,726.68, 20,706,543.36 and 8,129,208.96 is: 11,218,319.49
Step by Step Solution
- Step 1: Write the proportion equation
15,004,726.68 : 20,706,543.36 = 8,129,208.96 : x - Step 2: Convert to fraction form
15,004,726.68/20,706,543.36 = 8,129,208.96/x - Step 3: Cross multiply
15,004,726.68x = 20,706,543.36 × 8,129,208.96 - Step 4: Simplify right side
15,004,726.68x = 168,327,817,812,740.50 - Step 5: Solve for x
x = 168,327,817,812,740.50/15,004,726.68 - Step 6: Final answer
x = 11,218,319.49
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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.