Finding the Fourth Proportional to 211,028,275.92, 291,235,176.56 and 132,778,903.08
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Solution
The fourth proportional to 211,028,275.92, 291,235,176.56 and 132,778,903.08 is: 183,245,051.47
Step by Step Solution
- Step 1: Write the proportion equation
211,028,275.92 : 291,235,176.56 = 132,778,903.08 : x - Step 2: Convert to fraction form
211,028,275.92/291,235,176.56 = 132,778,903.08/x - Step 3: Cross multiply
211,028,275.92x = 291,235,176.56 × 132,778,903.08 - Step 4: Simplify right side
211,028,275.92x = 38,669,887,281,946,928 - Step 5: Solve for x
x = 38,669,887,281,946,928/211,028,275.92 - Step 6: Final answer
x = 183,245,051.47
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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.