Finding the Fourth Proportional to 156,914,854.75, 216,544,491.71 and 86,358,588.67
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Solution
The fourth proportional to 156,914,854.75, 216,544,491.71 and 86,358,588.67 is: 119,175,948.75
Step by Step Solution
- Step 1: Write the proportion equation
156,914,854.75 : 216,544,491.71 = 86,358,588.67 : x - Step 2: Convert to fraction form
156,914,854.75/216,544,491.71 = 86,358,588.67/x - Step 3: Cross multiply
156,914,854.75x = 216,544,491.71 × 86,358,588.67 - Step 4: Simplify right side
156,914,854.75x = 18,700,476,688,338,116 - Step 5: Solve for x
x = 18,700,476,688,338,116/156,914,854.75 - Step 6: Final answer
x = 119,175,948.75
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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.