Finding the Fourth Proportional to 48,385,844.80, 72,686,901.60 and 40,423,220.80
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Solution
The fourth proportional to 48,385,844.80, 72,686,901.60 and 40,423,220.80 is: 60,725,170.45
Step by Step Solution
- Step 1: Write the proportion equation
48,385,844.80 : 72,686,901.60 = 40,423,220.80 : x - Step 2: Convert to fraction form
48,385,844.80/72,686,901.60 = 40,423,220.80/x - Step 3: Cross multiply
48,385,844.80x = 72,686,901.60 × 40,423,220.80 - Step 4: Simplify right side
48,385,844.80x = 2,938,238,672,644,673 - Step 5: Solve for x
x = 2,938,238,672,644,673/48,385,844.80 - Step 6: Final answer
x = 60,725,170.45
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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.