Finding the Fourth Proportional to 19,473,983.87, 26,865,048.80 and 12,600,686.75
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Solution
The fourth proportional to 19,473,983.87, 26,865,048.80 and 12,600,686.75 is: 17,383,092.58
Step by Step Solution
- Step 1: Write the proportion equation
19,473,983.87 : 26,865,048.80 = 12,600,686.75 : x - Step 2: Convert to fraction form
19,473,983.87/26,865,048.80 = 12,600,686.75/x - Step 3: Cross multiply
19,473,983.87x = 26,865,048.80 × 12,600,686.75 - Step 4: Simplify right side
19,473,983.87x = 338,518,064,349,439.81 - Step 5: Solve for x
x = 338,518,064,349,439.81/19,473,983.87 - Step 6: Final answer
x = 17,383,092.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.