Finding the Fourth Proportional to 71,358,340.80, 107,037,511.20 and 49,834,980.30
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Solution
The fourth proportional to 71,358,340.80, 107,037,511.20 and 49,834,980.30 is: 74,752,470.45
Step by Step Solution
- Step 1: Write the proportion equation
71,358,340.80 : 107,037,511.20 = 49,834,980.30 : x - Step 2: Convert to fraction form
71,358,340.80/107,037,511.20 = 49,834,980.30/x - Step 3: Cross multiply
71,358,340.80x = 107,037,511.20 × 49,834,980.30 - Step 4: Simplify right side
71,358,340.80x = 5,334,212,262,013,029 - Step 5: Solve for x
x = 5,334,212,262,013,029/71,358,340.80 - Step 6: Final answer
x = 74,752,470.45
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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.