Finding the Fourth Proportional to 317,873,646.08, 438,567,041.92 and 185,619,239.36
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Solution
The fourth proportional to 317,873,646.08, 438,567,041.92 and 185,619,239.36 is: 256,096,979.83
Step by Step Solution
- Step 1: Write the proportion equation
317,873,646.08 : 438,567,041.92 = 185,619,239.36 : x - Step 2: Convert to fraction form
317,873,646.08/438,567,041.92 = 185,619,239.36/x - Step 3: Cross multiply
317,873,646.08x = 438,567,041.92 × 185,619,239.36 - Step 4: Simplify right side
317,873,646.08x = 81,406,480,729,555,648 - Step 5: Solve for x
x = 81,406,480,729,555,648/317,873,646.08 - Step 6: Final answer
x = 256,096,979.83
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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.