Finding the Fourth Proportional to 701,971,201.96, 968,708,419.69 and 388,698,689.88
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Solution
The fourth proportional to 701,971,201.96, 968,708,419.69 and 388,698,689.88 is: 536,397,636.48
Step by Step Solution
- Step 1: Write the proportion equation
701,971,201.96 : 968,708,419.69 = 388,698,689.88 : x - Step 2: Convert to fraction form
701,971,201.96/968,708,419.69 = 388,698,689.88/x - Step 3: Cross multiply
701,971,201.96x = 968,708,419.69 × 388,698,689.88 - Step 4: Simplify right side
701,971,201.96x = 376,535,693,602,441,152 - Step 5: Solve for x
x = 376,535,693,602,441,152/701,971,201.96 - Step 6: Final answer
x = 536,397,636.48
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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.