Finding the Fourth Proportional to 5,460,242,865.15, 7,540,339,236.65 and 5,162,772,315.63
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Solution
The fourth proportional to 5,460,242,865.15, 7,540,339,236.65 and 5,162,772,315.63 is: 7,129,546,363.20
Step by Step Solution
- Step 1: Write the proportion equation
5,460,242,865.15 : 7,540,339,236.65 = 5,162,772,315.63 : x - Step 2: Convert to fraction form
5,460,242,865.15/7,540,339,236.65 = 5,162,772,315.63/x - Step 3: Cross multiply
5,460,242,865.15x = 7,540,339,236.65 × 5,162,772,315.63 - Step 4: Simplify right side
5,460,242,865.15x = 38,929,054,661,450,833,920 - Step 5: Solve for x
x = 38,929,054,661,450,833,920/5,460,242,865.15 - Step 6: Final answer
x = 7,129,546,363.20
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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.