Finding the Fourth Proportional to 438,399,077.60, 604,848,378.84 and 298,927,701.20
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Solution
The fourth proportional to 438,399,077.60, 604,848,378.84 and 298,927,701.20 is: 412,423,165.79
Step by Step Solution
- Step 1: Write the proportion equation
438,399,077.60 : 604,848,378.84 = 298,927,701.20 : x - Step 2: Convert to fraction form
438,399,077.60/604,848,378.84 = 298,927,701.20/x - Step 3: Cross multiply
438,399,077.60x = 604,848,378.84 × 298,927,701.20 - Step 4: Simplify right side
438,399,077.60x = 180,805,935,461,187,936 - Step 5: Solve for x
x = 180,805,935,461,187,936/438,399,077.60 - Step 6: Final answer
x = 412,423,165.79
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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.