Finding the Fourth Proportional to 353,677,646.12, 488,063,705.65 and 202,995,103.91
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Solution
The fourth proportional to 353,677,646.12, 488,063,705.65 and 202,995,103.91 is: 280,126,673.91
Step by Step Solution
- Step 1: Write the proportion equation
353,677,646.12 : 488,063,705.65 = 202,995,103.91 : x - Step 2: Convert to fraction form
353,677,646.12/488,063,705.65 = 202,995,103.91/x - Step 3: Cross multiply
353,677,646.12x = 488,063,705.65 × 202,995,103.91 - Step 4: Simplify right side
353,677,646.12x = 99,074,542,643,834,064 - Step 5: Solve for x
x = 99,074,542,643,834,064/353,677,646.12 - Step 6: Final answer
x = 280,126,673.91
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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.