Finding the Fourth Proportional to 261,248,307.99, 391,909,273.71 and 83,925,990.26
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Solution
The fourth proportional to 261,248,307.99, 391,909,273.71 and 83,925,990.26 is: 125,900,811.16
Step by Step Solution
- Step 1: Write the proportion equation
261,248,307.99 : 391,909,273.71 = 83,925,990.26 : x - Step 2: Convert to fraction form
261,248,307.99/391,909,273.71 = 83,925,990.26/x - Step 3: Cross multiply
261,248,307.99x = 391,909,273.71 × 83,925,990.26 - Step 4: Simplify right side
261,248,307.99x = 32,891,373,889,185,812 - Step 5: Solve for x
x = 32,891,373,889,185,812/261,248,307.99 - Step 6: Final answer
x = 125,900,811.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.