Finding the Fourth Proportional to 1,570,932,799.40, 2,356,399,199.10 and 1,438,285,125.80
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Solution
The fourth proportional to 1,570,932,799.40, 2,356,399,199.10 and 1,438,285,125.80 is: 2,157,427,688.70
Step by Step Solution
- Step 1: Write the proportion equation
1,570,932,799.40 : 2,356,399,199.10 = 1,438,285,125.80 : x - Step 2: Convert to fraction form
1,570,932,799.40/2,356,399,199.10 = 1,438,285,125.80/x - Step 3: Cross multiply
1,570,932,799.40x = 2,356,399,199.10 × 1,438,285,125.80 - Step 4: Simplify right side
1,570,932,799.40x = 3,389,173,918,512,562,688 - Step 5: Solve for x
x = 3,389,173,918,512,562,688/1,570,932,799.40 - Step 6: Final answer
x = 2,157,427,688.70
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1.5x scale
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.