Finding the Fourth Proportional to 26,386,931.40, 39,579,084.90 and 13,608,727.80
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Solution
The fourth proportional to 26,386,931.40, 39,579,084.90 and 13,608,727.80 is: 20,412,414.95
Step by Step Solution
- Step 1: Write the proportion equation
26,386,931.40 : 39,579,084.90 = 13,608,727.80 : x - Step 2: Convert to fraction form
26,386,931.40/39,579,084.90 = 13,608,727.80/x - Step 3: Cross multiply
26,386,931.40x = 39,579,084.90 × 13,608,727.80 - Step 4: Simplify right side
26,386,931.40x = 538,620,992,977,190.25 - Step 5: Solve for x
x = 538,620,992,977,190.25/26,386,931.40 - Step 6: Final answer
x = 20,412,414.95
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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.