Finding the Fourth Proportional to 15,488,289.93, 21,373,882.70 and 8,519,681.42
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Solution
The fourth proportional to 15,488,289.93, 21,373,882.70 and 8,519,681.42 is: 11,757,183.79
Step by Step Solution
- Step 1: Write the proportion equation
15,488,289.93 : 21,373,882.70 = 8,519,681.42 : x - Step 2: Convert to fraction form
15,488,289.93/21,373,882.70 = 8,519,681.42/x - Step 3: Cross multiply
15,488,289.93x = 21,373,882.70 × 8,519,681.42 - Step 4: Simplify right side
15,488,289.93x = 182,098,671,312,449.44 - Step 5: Solve for x
x = 182,098,671,312,449.44/15,488,289.93 - Step 6: Final answer
x = 11,757,183.79
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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.