Finding the Fourth Proportional to 67,911,394.50, 93,712,343.85 and 38,542,725.54
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Solution
The fourth proportional to 67,911,394.50, 93,712,343.85 and 38,542,725.54 is: 53,185,907.54
Step by Step Solution
- Step 1: Write the proportion equation
67,911,394.50 : 93,712,343.85 = 38,542,725.54 : x - Step 2: Convert to fraction form
67,911,394.50/93,712,343.85 = 38,542,725.54/x - Step 3: Cross multiply
67,911,394.50x = 93,712,343.85 × 38,542,725.54 - Step 4: Simplify right side
67,911,394.50x = 3,611,929,148,720,656.50 - Step 5: Solve for x
x = 3,611,929,148,720,656.50/67,911,394.50 - Step 6: Final answer
x = 53,185,907.54
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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.