Finding the Fourth Proportional to 28,615,436,419.37, 42,929,556,430.49 and 8,719,880,948.96
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Solution
The fourth proportional to 28,615,436,419.37, 42,929,556,430.49 and 8,719,880,948.96 is: 13,081,772,221.80
Step by Step Solution
- Step 1: Write the proportion equation
28,615,436,419.37 : 42,929,556,430.49 = 8,719,880,948.96 : x - Step 2: Convert to fraction form
28,615,436,419.37/42,929,556,430.49 = 8,719,880,948.96/x - Step 3: Cross multiply
28,615,436,419.37x = 42,929,556,430.49 × 8,719,880,948.96 - Step 4: Simplify right side
28,615,436,419.37x = 374,340,621,265,532,944,384 - Step 5: Solve for x
x = 374,340,621,265,532,944,384/28,615,436,419.37 - Step 6: Final answer
x = 13,081,772,221.80
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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.