Finding the Fourth Proportional to 728,298,251.75, 1,005,129,475.07 and 446,227,886.36
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Solution
The fourth proportional to 728,298,251.75, 1,005,129,475.07 and 446,227,886.36 is: 615,842,204.89
Step by Step Solution
- Step 1: Write the proportion equation
728,298,251.75 : 1,005,129,475.07 = 446,227,886.36 : x - Step 2: Convert to fraction form
728,298,251.75/1,005,129,475.07 = 446,227,886.36/x - Step 3: Cross multiply
728,298,251.75x = 1,005,129,475.07 × 446,227,886.36 - Step 4: Simplify right side
728,298,251.75x = 448,516,801,178,904,128 - Step 5: Solve for x
x = 448,516,801,178,904,128/728,298,251.75 - Step 6: Final answer
x = 615,842,204.89
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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.