Finding the Fourth Proportional to 40,487,387.40, 60,731,032.44 and 13,193,637.12
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Solution
The fourth proportional to 40,487,387.40, 60,731,032.44 and 13,193,637.12 is: 19,790,439.82
Step by Step Solution
- Step 1: Write the proportion equation
40,487,387.40 : 60,731,032.44 = 13,193,637.12 : x - Step 2: Convert to fraction form
40,487,387.40/60,731,032.44 = 13,193,637.12/x - Step 3: Cross multiply
40,487,387.40x = 60,731,032.44 × 13,193,637.12 - Step 4: Simplify right side
40,487,387.40x = 801,263,203,936,308.12 - Step 5: Solve for x
x = 801,263,203,936,308.12/40,487,387.40 - Step 6: Final answer
x = 19,790,439.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.