Finding the Fourth Proportional to 5,291,400,243.84, 7,302,074,388.44 and 2,912,487,319.68
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Solution
The fourth proportional to 5,291,400,243.84, 7,302,074,388.44 and 2,912,487,319.68 is: 4,019,200,605.44
Step by Step Solution
- Step 1: Write the proportion equation
5,291,400,243.84 : 7,302,074,388.44 = 2,912,487,319.68 : x - Step 2: Convert to fraction form
5,291,400,243.84/7,302,074,388.44 = 2,912,487,319.68/x - Step 3: Cross multiply
5,291,400,243.84x = 7,302,074,388.44 × 2,912,487,319.68 - Step 4: Simplify right side
5,291,400,243.84x = 21,267,199,063,691,587,584 - Step 5: Solve for x
x = 21,267,199,063,691,587,584/5,291,400,243.84 - Step 6: Final answer
x = 4,019,200,605.44
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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.