Finding the Fourth Proportional to 287,313,869.13, 430,970,809.34 and 68,964,211.17
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Solution
The fourth proportional to 287,313,869.13, 430,970,809.34 and 68,964,211.17 is: 103,446,318.11
Step by Step Solution
- Step 1: Write the proportion equation
287,313,869.13 : 430,970,809.34 = 68,964,211.17 : x - Step 2: Convert to fraction form
287,313,869.13/430,970,809.34 = 68,964,211.17/x - Step 3: Cross multiply
287,313,869.13x = 430,970,809.34 × 68,964,211.17 - Step 4: Simplify right side
287,313,869.13x = 29,721,561,903,084,748 - Step 5: Solve for x
x = 29,721,561,903,084,748/287,313,869.13 - Step 6: Final answer
x = 103,446,318.11
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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.