Finding the Fourth Proportional to 320,789,844.24, 442,690,312.68 and 174,112,158.48
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Solution
The fourth proportional to 320,789,844.24, 442,690,312.68 and 174,112,158.48 is: 240,274,956.53
Step by Step Solution
- Step 1: Write the proportion equation
320,789,844.24 : 442,690,312.68 = 174,112,158.48 : x - Step 2: Convert to fraction form
320,789,844.24/442,690,312.68 = 174,112,158.48/x - Step 3: Cross multiply
320,789,844.24x = 442,690,312.68 × 174,112,158.48 - Step 4: Simplify right side
320,789,844.24x = 77,077,765,878,900,912 - Step 5: Solve for x
x = 77,077,765,878,900,912/320,789,844.24 - Step 6: Final answer
x = 240,274,956.53
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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.