Finding the Fourth Proportional to 1,385,283,357.68, 2,081,239,999.32 and 888,267,638.21
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Solution
The fourth proportional to 1,385,283,357.68, 2,081,239,999.32 and 888,267,638.21 is: 1,334,527,068.77
Step by Step Solution
- Step 1: Write the proportion equation
1,385,283,357.68 : 2,081,239,999.32 = 888,267,638.21 : x - Step 2: Convert to fraction form
1,385,283,357.68/2,081,239,999.32 = 888,267,638.21/x - Step 3: Cross multiply
1,385,283,357.68x = 2,081,239,999.32 × 888,267,638.21 - Step 4: Simplify right side
1,385,283,357.68x = 1,848,698,138,733,752,320 - Step 5: Solve for x
x = 1,848,698,138,733,752,320/1,385,283,357.68 - Step 6: Final answer
x = 1,334,527,068.77
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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.