Finding the Fourth Proportional to 15,527,620.59, 21,432,970.08 and 10,021,006.09
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Solution
The fourth proportional to 15,527,620.59, 21,432,970.08 and 10,021,006.09 is: 13,832,120.80
Step by Step Solution
- Step 1: Write the proportion equation
15,527,620.59 : 21,432,970.08 = 10,021,006.09 : x - Step 2: Convert to fraction form
15,527,620.59/21,432,970.08 = 10,021,006.09/x - Step 3: Cross multiply
15,527,620.59x = 21,432,970.08 × 10,021,006.09 - Step 4: Simplify right side
15,527,620.59x = 214,779,923,698,467.78 - Step 5: Solve for x
x = 214,779,923,698,467.78/15,527,620.59 - Step 6: Final answer
x = 13,832,120.80
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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.