Finding the Fourth Proportional to 51,910,132.64, 71,636,447.20 and 28,706,820.80
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Solution
The fourth proportional to 51,910,132.64, 71,636,447.20 and 28,706,820.80 is: 39,615,669.39
Step by Step Solution
- Step 1: Write the proportion equation
51,910,132.64 : 71,636,447.20 = 28,706,820.80 : x - Step 2: Convert to fraction form
51,910,132.64/71,636,447.20 = 28,706,820.80/x - Step 3: Cross multiply
51,910,132.64x = 71,636,447.20 × 28,706,820.80 - Step 4: Simplify right side
51,910,132.64x = 2,056,454,652,519,062 - Step 5: Solve for x
x = 2,056,454,652,519,062/51,910,132.64 - Step 6: Final answer
x = 39,615,669.39
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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.