Finding the Fourth Proportional to 19,641,031.74, 27,105,465.06 and 10,939,206.60
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Solution
The fourth proportional to 19,641,031.74, 27,105,465.06 and 10,939,206.60 is: 15,096,573.65
Step by Step Solution
- Step 1: Write the proportion equation
19,641,031.74 : 27,105,465.06 = 10,939,206.60 : x - Step 2: Convert to fraction form
19,641,031.74/27,105,465.06 = 10,939,206.60/x - Step 3: Cross multiply
19,641,031.74x = 27,105,465.06 × 10,939,206.60 - Step 4: Simplify right side
19,641,031.74x = 296,512,282,280,421.38 - Step 5: Solve for x
x = 296,512,282,280,421.38/19,641,031.74 - Step 6: Final answer
x = 15,096,573.65
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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.