Finding the Fourth Proportional to 25,450,774.74, 35,108,685.09 and 15,130,156.50
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Solution
The fourth proportional to 25,450,774.74, 35,108,685.09 and 15,130,156.50 is: 20,871,659.32
Step by Step Solution
- Step 1: Write the proportion equation
25,450,774.74 : 35,108,685.09 = 15,130,156.50 : x - Step 2: Convert to fraction form
25,450,774.74/35,108,685.09 = 15,130,156.50/x - Step 3: Cross multiply
25,450,774.74x = 35,108,685.09 × 15,130,156.50 - Step 4: Simplify right side
25,450,774.74x = 531,199,899,920,916.62 - Step 5: Solve for x
x = 531,199,899,920,916.62/25,450,774.74 - Step 6: Final answer
x = 20,871,659.32
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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.