Finding the Fourth Proportional to 19,697,342.40, 29,488,276.80 and 14,028,638.40
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Solution
The fourth proportional to 19,697,342.40, 29,488,276.80 and 14,028,638.40 is: 21,001,836.89
Step by Step Solution
- Step 1: Write the proportion equation
19,697,342.40 : 29,488,276.80 = 14,028,638.40 : x - Step 2: Convert to fraction form
19,697,342.40/29,488,276.80 = 14,028,638.40/x - Step 3: Cross multiply
19,697,342.40x = 29,488,276.80 × 14,028,638.40 - Step 4: Simplify right side
19,697,342.40x = 413,680,372,266,309.12 - Step 5: Solve for x
x = 413,680,372,266,309.12/19,697,342.40 - Step 6: Final answer
x = 21,001,836.89
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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.