Finding the Fourth Proportional to 19,499,901.26, 26,918,554.43 and 12,888,471.80
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Solution
The fourth proportional to 19,499,901.26, 26,918,554.43 and 12,888,471.80 is: 17,791,835.21
Step by Step Solution
- Step 1: Write the proportion equation
19,499,901.26 : 26,918,554.43 = 12,888,471.80 : x - Step 2: Convert to fraction form
19,499,901.26/26,918,554.43 = 12,888,471.80/x - Step 3: Cross multiply
19,499,901.26x = 26,918,554.43 × 12,888,471.80 - Step 4: Simplify right side
19,499,901.26x = 346,939,029,767,337.69 - Step 5: Solve for x
x = 346,939,029,767,337.69/19,499,901.26 - Step 6: Final answer
x = 17,791,835.21
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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.