Finding the Fourth Proportional to 2,127,511,728.24, 2,936,749,636.92 and 1,280,778,407.04
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Solution
The fourth proportional to 2,127,511,728.24, 2,936,749,636.92 and 1,280,778,407.04 is: 1,767,945,845.81
Step by Step Solution
- Step 1: Write the proportion equation
2,127,511,728.24 : 2,936,749,636.92 = 1,280,778,407.04 : x - Step 2: Convert to fraction form
2,127,511,728.24/2,936,749,636.92 = 1,280,778,407.04/x - Step 3: Cross multiply
2,127,511,728.24x = 2,936,749,636.92 × 1,280,778,407.04 - Step 4: Simplify right side
2,127,511,728.24x = 3,761,325,521,849,695,744 - Step 5: Solve for x
x = 3,761,325,521,849,695,744/2,127,511,728.24 - Step 6: Final answer
x = 1,767,945,845.81
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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.