Finding the Fourth Proportional to 217,386,959.76, 299,995,309.08 and 118,268,418.18
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Solution
The fourth proportional to 217,386,959.76, 299,995,309.08 and 118,268,418.18 is: 163,211,126.86
Step by Step Solution
- Step 1: Write the proportion equation
217,386,959.76 : 299,995,309.08 = 118,268,418.18 : x - Step 2: Convert to fraction form
217,386,959.76/299,995,309.08 = 118,268,418.18/x - Step 3: Cross multiply
217,386,959.76x = 299,995,309.08 × 118,268,418.18 - Step 4: Simplify right side
217,386,959.76x = 35,479,970,666,311,792 - Step 5: Solve for x
x = 35,479,970,666,311,792/217,386,959.76 - Step 6: Final answer
x = 163,211,126.86
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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.