Finding the Fourth Proportional to 19,785,189.60, 29,679,788.88 and 6,829,651.68
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Solution
The fourth proportional to 19,785,189.60, 29,679,788.88 and 6,829,651.68 is: 10,245,169.45
Step by Step Solution
- Step 1: Write the proportion equation
19,785,189.60 : 29,679,788.88 = 6,829,651.68 : x - Step 2: Convert to fraction form
19,785,189.60/29,679,788.88 = 6,829,651.68/x - Step 3: Cross multiply
19,785,189.60x = 29,679,788.88 × 6,829,651.68 - Step 4: Simplify right side
19,785,189.60x = 202,702,619,986,337.31 - Step 5: Solve for x
x = 202,702,619,986,337.31/19,785,189.60 - Step 6: Final answer
x = 10,245,169.45
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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.