Finding the Fourth Proportional to 19,423,218.80, 29,134,828.20 and 18,593,908.40
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Solution
The fourth proportional to 19,423,218.80, 29,134,828.20 and 18,593,908.40 is: 27,890,862.60
Step by Step Solution
- Step 1: Write the proportion equation
19,423,218.80 : 29,134,828.20 = 18,593,908.40 : x - Step 2: Convert to fraction form
19,423,218.80/29,134,828.20 = 18,593,908.40/x - Step 3: Cross multiply
19,423,218.80x = 29,134,828.20 × 18,593,908.40 - Step 4: Simplify right side
19,423,218.80x = 541,730,326,800,536.81 - Step 5: Solve for x
x = 541,730,326,800,536.81/19,423,218.80 - Step 6: Final answer
x = 27,890,862.60
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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.