Finding the Fourth Proportional to 140,246,908.79, 193,559,959.13 and 80,706,981.96
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Solution
The fourth proportional to 140,246,908.79, 193,559,959.13 and 80,706,981.96 is: 111,386,698.39
Step by Step Solution
- Step 1: Write the proportion equation
140,246,908.79 : 193,559,959.13 = 80,706,981.96 : x - Step 2: Convert to fraction form
140,246,908.79/193,559,959.13 = 80,706,981.96/x - Step 3: Cross multiply
140,246,908.79x = 193,559,959.13 × 80,706,981.96 - Step 4: Simplify right side
140,246,908.79x = 15,621,640,129,683,246 - Step 5: Solve for x
x = 15,621,640,129,683,246/140,246,908.79 - Step 6: Final answer
x = 111,386,698.39
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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.