Finding the Fourth Proportional to 28,163,317.68, 38,871,442.08 and 17,153,697.24
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Solution
The fourth proportional to 28,163,317.68, 38,871,442.08 and 17,153,697.24 is: 23,675,795.45
Step by Step Solution
- Step 1: Write the proportion equation
28,163,317.68 : 38,871,442.08 = 17,153,697.24 : x - Step 2: Convert to fraction form
28,163,317.68/38,871,442.08 = 17,153,697.24/x - Step 3: Cross multiply
28,163,317.68x = 38,871,442.08 × 17,153,697.24 - Step 4: Simplify right side
28,163,317.68x = 666,788,948,722,515.75 - Step 5: Solve for x
x = 666,788,948,722,515.75/28,163,317.68 - Step 6: Final answer
x = 23,675,795.45
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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.