Finding the Fourth Proportional to 71,358,345.80, 107,037,518.70 and 49,834,985.30
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Solution
The fourth proportional to 71,358,345.80, 107,037,518.70 and 49,834,985.30 is: 74,752,477.95
Step by Step Solution
- Step 1: Write the proportion equation
71,358,345.80 : 107,037,518.70 = 49,834,985.30 : x - Step 2: Convert to fraction form
71,358,345.80/107,037,518.70 = 49,834,985.30/x - Step 3: Cross multiply
71,358,345.80x = 107,037,518.70 × 49,834,985.30 - Step 4: Simplify right side
71,358,345.80x = 5,334,213,170,962,975 - Step 5: Solve for x
x = 5,334,213,170,962,975/71,358,345.80 - Step 6: Final answer
x = 74,752,477.95
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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.