Finding the Fourth Proportional to 73,452,209.80, 110,178,314.70 and 39,439,985.80
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Solution
The fourth proportional to 73,452,209.80, 110,178,314.70 and 39,439,985.80 is: 59,159,978.70
Step by Step Solution
- Step 1: Write the proportion equation
73,452,209.80 : 110,178,314.70 = 39,439,985.80 : x - Step 2: Convert to fraction form
73,452,209.80/110,178,314.70 = 39,439,985.80/x - Step 3: Cross multiply
73,452,209.80x = 110,178,314.70 × 39,439,985.80 - Step 4: Simplify right side
73,452,209.80x = 4,345,431,167,235,931 - Step 5: Solve for x
x = 4,345,431,167,235,931/73,452,209.80 - Step 6: Final answer
x = 59,159,978.70
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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.