Finding the Fourth Proportional to 8,842,355.91, 12,172,973.90 and 8,436,098.79
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Solution
The fourth proportional to 8,842,355.91, 12,172,973.90 and 8,436,098.79 is: 11,613,693.39
Step by Step Solution
- Step 1: Write the proportion equation
8,842,355.91 : 12,172,973.90 = 8,436,098.79 : x - Step 2: Convert to fraction form
8,842,355.91/12,172,973.90 = 8,436,098.79/x - Step 3: Cross multiply
8,842,355.91x = 12,172,973.90 × 8,436,098.79 - Step 4: Simplify right side
8,842,355.91x = 102,692,410,346,311.08 - Step 5: Solve for x
x = 102,692,410,346,311.08/8,842,355.91 - Step 6: Final answer
x = 11,613,693.39
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1.5x scale
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.