Finding the Fourth Proportional to 156,914,852.75, 216,544,488.95 and 86,358,586.67
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Solution
The fourth proportional to 156,914,852.75, 216,544,488.95 and 86,358,586.67 is: 119,175,945.99
Step by Step Solution
- Step 1: Write the proportion equation
156,914,852.75 : 216,544,488.95 = 86,358,586.67 : x - Step 2: Convert to fraction form
156,914,852.75/216,544,488.95 = 86,358,586.67/x - Step 3: Cross multiply
156,914,852.75x = 216,544,488.95 × 86,358,586.67 - Step 4: Simplify right side
156,914,852.75x = 18,700,476,016,467,640 - Step 5: Solve for x
x = 18,700,476,016,467,640/156,914,852.75 - Step 6: Final answer
x = 119,175,945.99
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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.