Finding the Fourth Proportional to 72,322,181.76, 99,746,862.80 and 47,567,781.44
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Solution
The fourth proportional to 72,322,181.76, 99,746,862.80 and 47,567,781.44 is: 65,605,556.32
Step by Step Solution
- Step 1: Write the proportion equation
72,322,181.76 : 99,746,862.80 = 47,567,781.44 : x - Step 2: Convert to fraction form
72,322,181.76/99,746,862.80 = 47,567,781.44/x - Step 3: Cross multiply
72,322,181.76x = 99,746,862.80 × 47,567,781.44 - Step 4: Simplify right side
72,322,181.76x = 4,744,736,968,996,066 - Step 5: Solve for x
x = 4,744,736,968,996,066/72,322,181.76 - Step 6: Final answer
x = 65,605,556.32
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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.