Finding the Fourth Proportional to 149,487,789.80, 224,231,684.70 and 68,866,221.80
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Solution
The fourth proportional to 149,487,789.80, 224,231,684.70 and 68,866,221.80 is: 103,299,332.70
Step by Step Solution
- Step 1: Write the proportion equation
149,487,789.80 : 224,231,684.70 = 68,866,221.80 : x - Step 2: Convert to fraction form
149,487,789.80/224,231,684.70 = 68,866,221.80/x - Step 3: Cross multiply
149,487,789.80x = 224,231,684.70 × 68,866,221.80 - Step 4: Simplify right side
149,487,789.80x = 15,441,988,933,137,864 - Step 5: Solve for x
x = 15,441,988,933,137,864/149,487,789.80 - Step 6: Final answer
x = 103,299,332.70
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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.