Finding the Fourth Proportional to 19,799,307.20, 29,675,341.20 and 17,768,021.60
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Solution
The fourth proportional to 19,799,307.20, 29,675,341.20 and 17,768,021.60 is: 26,630,836.02
Step by Step Solution
- Step 1: Write the proportion equation
19,799,307.20 : 29,675,341.20 = 17,768,021.60 : x - Step 2: Convert to fraction form
19,799,307.20/29,675,341.20 = 17,768,021.60/x - Step 3: Cross multiply
19,799,307.20x = 29,675,341.20 × 17,768,021.60 - Step 4: Simplify right side
19,799,307.20x = 527,272,103,428,969.94 - Step 5: Solve for x
x = 527,272,103,428,969.94/19,799,307.20 - Step 6: Final answer
x = 26,630,836.02
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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.