Finding the Fourth Proportional to 280,184,860.96, 420,535,643.12 and 142,107,375.52
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Solution
The fourth proportional to 280,184,860.96, 420,535,643.12 and 142,107,375.52 is: 213,292,097.05
Step by Step Solution
- Step 1: Write the proportion equation
280,184,860.96 : 420,535,643.12 = 142,107,375.52 : x - Step 2: Convert to fraction form
280,184,860.96/420,535,643.12 = 142,107,375.52/x - Step 3: Cross multiply
280,184,860.96x = 420,535,643.12 × 142,107,375.52 - Step 4: Simplify right side
280,184,860.96x = 59,761,216,556,398,552 - Step 5: Solve for x
x = 59,761,216,556,398,552/280,184,860.96 - Step 6: Final answer
x = 213,292,097.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.