Finding the Fourth Proportional to 211,028,275.91, 291,235,176.56 and 132,778,903.07
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Solution
The fourth proportional to 211,028,275.91, 291,235,176.56 and 132,778,903.07 is: 183,245,051.46
Step by Step Solution
- Step 1: Write the proportion equation
211,028,275.91 : 291,235,176.56 = 132,778,903.07 : x - Step 2: Convert to fraction form
211,028,275.91/291,235,176.56 = 132,778,903.07/x - Step 3: Cross multiply
211,028,275.91x = 291,235,176.56 × 132,778,903.07 - Step 4: Simplify right side
211,028,275.91x = 38,669,887,279,034,576 - Step 5: Solve for x
x = 38,669,887,279,034,576/211,028,275.91 - Step 6: Final answer
x = 183,245,051.46
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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.