Finding the Fourth Proportional to 12,950,439.80, 19,425,659.70 and 5,376,615.80
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Solution
The fourth proportional to 12,950,439.80, 19,425,659.70 and 5,376,615.80 is: 8,064,923.70
Step by Step Solution
- Step 1: Write the proportion equation
12,950,439.80 : 19,425,659.70 = 5,376,615.80 : x - Step 2: Convert to fraction form
12,950,439.80/19,425,659.70 = 5,376,615.80/x - Step 3: Cross multiply
12,950,439.80x = 19,425,659.70 × 5,376,615.80 - Step 4: Simplify right side
12,950,439.80x = 104,444,308,868,443.25 - Step 5: Solve for x
x = 104,444,308,868,443.25/12,950,439.80 - Step 6: Final answer
x = 8,064,923.70
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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.