Finding the Fourth Proportional to 26,134,982.87, 36,070,790.69 and 15,127,801.62
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Solution
The fourth proportional to 26,134,982.87, 36,070,790.69 and 15,127,801.62 is: 20,878,979.27
Step by Step Solution
- Step 1: Write the proportion equation
26,134,982.87 : 36,070,790.69 = 15,127,801.62 : x - Step 2: Convert to fraction form
26,134,982.87/36,070,790.69 = 15,127,801.62/x - Step 3: Cross multiply
26,134,982.87x = 36,070,790.69 × 15,127,801.62 - Step 4: Simplify right side
26,134,982.87x = 545,671,765,578,870 - Step 5: Solve for x
x = 545,671,765,578,870/26,134,982.87 - Step 6: Final answer
x = 20,878,979.27
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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.