Finding the Fourth Proportional to 57,974,449.40, 87,129,635.70 and 56,966,679.80
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Solution
The fourth proportional to 57,974,449.40, 87,129,635.70 and 56,966,679.80 is: 85,615,061.62
Step by Step Solution
- Step 1: Write the proportion equation
57,974,449.40 : 87,129,635.70 = 56,966,679.80 : x - Step 2: Convert to fraction form
57,974,449.40/87,129,635.70 = 56,966,679.80/x - Step 3: Cross multiply
57,974,449.40x = 87,129,635.70 × 56,966,679.80 - Step 4: Simplify right side
57,974,449.40x = 4,963,486,058,012,549 - Step 5: Solve for x
x = 4,963,486,058,012,549/57,974,449.40 - Step 6: Final answer
x = 85,615,061.62
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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.