Finding the Fourth Proportional to 492,276,818.48, 679,551,184.68 and 306,729,507.74
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Solution
The fourth proportional to 492,276,818.48, 679,551,184.68 and 306,729,507.74 is: 423,417,054.26
Step by Step Solution
- Step 1: Write the proportion equation
492,276,818.48 : 679,551,184.68 = 306,729,507.74 : x - Step 2: Convert to fraction form
492,276,818.48/679,551,184.68 = 306,729,507.74/x - Step 3: Cross multiply
492,276,818.48x = 679,551,184.68 × 306,729,507.74 - Step 4: Simplify right side
492,276,818.48x = 208,438,400,361,030,208 - Step 5: Solve for x
x = 208,438,400,361,030,208/492,276,818.48 - Step 6: Final answer
x = 423,417,054.26
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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.