Finding the Fourth Proportional to 19,292,820.66, 28,924,074.81 and 13,209,149.61
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Solution
The fourth proportional to 19,292,820.66, 28,924,074.81 and 13,209,149.61 is: 19,803,347.49
Step by Step Solution
- Step 1: Write the proportion equation
19,292,820.66 : 28,924,074.81 = 13,209,149.61 : x - Step 2: Convert to fraction form
19,292,820.66/28,924,074.81 = 13,209,149.61/x - Step 3: Cross multiply
19,292,820.66x = 28,924,074.81 × 13,209,149.61 - Step 4: Simplify right side
19,292,820.66x = 382,062,431,496,122.31 - Step 5: Solve for x
x = 382,062,431,496,122.31/19,292,820.66 - Step 6: Final answer
x = 19,803,347.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.