Finding the Fourth Proportional to 56,893,125.99, 78,512,513.84 and 30,787,643.78
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Solution
The fourth proportional to 56,893,125.99, 78,512,513.84 and 30,787,643.78 is: 42,486,948.40
Step by Step Solution
- Step 1: Write the proportion equation
56,893,125.99 : 78,512,513.84 = 30,787,643.78 : x - Step 2: Convert to fraction form
56,893,125.99/78,512,513.84 = 30,787,643.78/x - Step 3: Cross multiply
56,893,125.99x = 78,512,513.84 × 30,787,643.78 - Step 4: Simplify right side
56,893,125.99x = 2,417,215,308,378,240 - Step 5: Solve for x
x = 2,417,215,308,378,240/56,893,125.99 - Step 6: Final answer
x = 42,486,948.40
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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.