Finding the Fourth Proportional to 311,341,670.50, 429,653,448.36 and 170,213,194.99
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Solution
The fourth proportional to 311,341,670.50, 429,653,448.36 and 170,213,194.99 is: 234,895,271.38
Step by Step Solution
- Step 1: Write the proportion equation
311,341,670.50 : 429,653,448.36 = 170,213,194.99 : x - Step 2: Convert to fraction form
311,341,670.50/429,653,448.36 = 170,213,194.99/x - Step 3: Cross multiply
311,341,670.50x = 429,653,448.36 × 170,213,194.99 - Step 4: Simplify right side
311,341,670.50x = 73,132,686,183,826,576 - Step 5: Solve for x
x = 73,132,686,183,826,576/311,341,670.50 - Step 6: Final answer
x = 234,895,271.38
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1.5x scale
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.