Finding the Fourth Proportional to 19,730,001.20, 29,595,001.80 and 18,218,346.80
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Solution
The fourth proportional to 19,730,001.20, 29,595,001.80 and 18,218,346.80 is: 27,327,520.20
Step by Step Solution
- Step 1: Write the proportion equation
19,730,001.20 : 29,595,001.80 = 18,218,346.80 : x - Step 2: Convert to fraction form
19,730,001.20/29,595,001.80 = 18,218,346.80/x - Step 3: Cross multiply
19,730,001.20x = 29,595,001.80 × 18,218,346.80 - Step 4: Simplify right side
19,730,001.20x = 539,172,006,339,024.25 - Step 5: Solve for x
x = 539,172,006,339,024.25/19,730,001.20 - Step 6: Final answer
x = 27,327,520.20
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1.5x scale
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.