Finding the Fourth Proportional to 468,483,881.96, 646,507,818.42 and 259,653,507.08
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Solution
The fourth proportional to 468,483,881.96, 646,507,818.42 and 259,653,507.08 is: 358,321,873.75
Step by Step Solution
- Step 1: Write the proportion equation
468,483,881.96 : 646,507,818.42 = 259,653,507.08 : x - Step 2: Convert to fraction form
468,483,881.96/646,507,818.42 = 259,653,507.08/x - Step 3: Cross multiply
468,483,881.96x = 646,507,818.42 × 259,653,507.08 - Step 4: Simplify right side
468,483,881.96x = 167,868,022,407,392,832 - Step 5: Solve for x
x = 167,868,022,407,392,832/468,483,881.96 - Step 6: Final answer
x = 358,321,873.75
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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.