Finding the Fourth Proportional to 8,778,919.97, 12,115,380.23 and 4,911,210.47
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Solution
The fourth proportional to 8,778,919.97, 12,115,380.23 and 4,911,210.47 is: 6,777,733.75
Step by Step Solution
- Step 1: Write the proportion equation
8,778,919.97 : 12,115,380.23 = 4,911,210.47 : x - Step 2: Convert to fraction form
8,778,919.97/12,115,380.23 = 4,911,210.47/x - Step 3: Cross multiply
8,778,919.97x = 12,115,380.23 × 4,911,210.47 - Step 4: Simplify right side
8,778,919.97x = 59,501,182,148,474.05 - Step 5: Solve for x
x = 59,501,182,148,474.05/8,778,919.97 - Step 6: Final answer
x = 6,777,733.75
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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.