Finding the Fourth Proportional to 87,488,878.68, 120,738,320.84 and 50,319,169.32
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Solution
The fourth proportional to 87,488,878.68, 120,738,320.84 and 50,319,169.32 is: 69,442,563.46
Step by Step Solution
- Step 1: Write the proportion equation
87,488,878.68 : 120,738,320.84 = 50,319,169.32 : x - Step 2: Convert to fraction form
87,488,878.68/120,738,320.84 = 50,319,169.32/x - Step 3: Cross multiply
87,488,878.68x = 120,738,320.84 × 50,319,169.32 - Step 4: Simplify right side
87,488,878.68x = 6,075,452,009,760,445 - Step 5: Solve for x
x = 6,075,452,009,760,445/87,488,878.68 - Step 6: Final answer
x = 69,442,563.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.