Finding the Fourth Proportional to 19,771,743.60, 29,657,615.40 and 8,412,562.80
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Solution
The fourth proportional to 19,771,743.60, 29,657,615.40 and 8,412,562.80 is: 12,618,844.20
Step by Step Solution
- Step 1: Write the proportion equation
19,771,743.60 : 29,657,615.40 = 8,412,562.80 : x - Step 2: Convert to fraction form
19,771,743.60/29,657,615.40 = 8,412,562.80/x - Step 3: Cross multiply
19,771,743.60x = 29,657,615.40 × 8,412,562.80 - Step 4: Simplify right side
19,771,743.60x = 249,496,552,050,747.12 - Step 5: Solve for x
x = 249,496,552,050,747.12/19,771,743.60 - Step 6: Final answer
x = 12,618,844.20
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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.