Finding the Fourth Proportional to 331,927,368.99, 458,119,743.96 and 197,973,881.43
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Solution
The fourth proportional to 331,927,368.99, 458,119,743.96 and 197,973,881.43 is: 273,239,727.55
Step by Step Solution
- Step 1: Write the proportion equation
331,927,368.99 : 458,119,743.96 = 197,973,881.43 : x - Step 2: Convert to fraction form
331,927,368.99/458,119,743.96 = 197,973,881.43/x - Step 3: Cross multiply
331,927,368.99x = 458,119,743.96 × 197,973,881.43 - Step 4: Simplify right side
331,927,368.99x = 90,695,743,869,388,864 - Step 5: Solve for x
x = 90,695,743,869,388,864/331,927,368.99 - Step 6: Final answer
x = 273,239,727.55
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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.