Finding the Fourth Proportional to 160,308,154.70, 221,225,682.27 and 86,969,296.70
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Solution
The fourth proportional to 160,308,154.70, 221,225,682.27 and 86,969,296.70 is: 120,017,862.07
Step by Step Solution
- Step 1: Write the proportion equation
160,308,154.70 : 221,225,682.27 = 86,969,296.70 : x - Step 2: Convert to fraction form
160,308,154.70/221,225,682.27 = 86,969,296.70/x - Step 3: Cross multiply
160,308,154.70x = 221,225,682.27 × 86,969,296.70 - Step 4: Simplify right side
160,308,154.70x = 19,239,841,998,999,560 - Step 5: Solve for x
x = 19,239,841,998,999,560/160,308,154.70 - Step 6: Final answer
x = 120,017,862.07
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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.