Finding the Fourth Proportional to 39,106,852.47, 58,660,278.80 and 20,855,753.66
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Solution
The fourth proportional to 39,106,852.47, 58,660,278.80 and 20,855,753.66 is: 31,283,630.55
Step by Step Solution
- Step 1: Write the proportion equation
39,106,852.47 : 58,660,278.80 = 20,855,753.66 : x - Step 2: Convert to fraction form
39,106,852.47/58,660,278.80 = 20,855,753.66/x - Step 3: Cross multiply
39,106,852.47x = 58,660,278.80 × 20,855,753.66 - Step 4: Simplify right side
39,106,852.47x = 1,223,404,324,478,510.50 - Step 5: Solve for x
x = 1,223,404,324,478,510.50/39,106,852.47 - Step 6: Final answer
x = 31,283,630.55
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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.