Finding the Fourth Proportional to 640,281,107.48, 883,519,904.04 and 354,127,161.90
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Solution
The fourth proportional to 640,281,107.48, 883,519,904.04 and 354,127,161.90 is: 488,657,860.49
Step by Step Solution
- Step 1: Write the proportion equation
640,281,107.48 : 883,519,904.04 = 354,127,161.90 : x - Step 2: Convert to fraction form
640,281,107.48/883,519,904.04 = 354,127,161.90/x - Step 3: Cross multiply
640,281,107.48x = 883,519,904.04 × 354,127,161.90 - Step 4: Simplify right side
640,281,107.48x = 312,878,396,094,373,824 - Step 5: Solve for x
x = 312,878,396,094,373,824/640,281,107.48 - Step 6: Final answer
x = 488,657,860.49
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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.