Finding the Fourth Proportional to 71,104,834.98, 106,657,252.50 and 19,986,853.80
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Solution
The fourth proportional to 71,104,834.98, 106,657,252.50 and 19,986,853.80 is: 29,980,280.71
Step by Step Solution
- Step 1: Write the proportion equation
71,104,834.98 : 106,657,252.50 = 19,986,853.80 : x - Step 2: Convert to fraction form
71,104,834.98/106,657,252.50 = 19,986,853.80/x - Step 3: Cross multiply
71,104,834.98x = 106,657,252.50 × 19,986,853.80 - Step 4: Simplify right side
71,104,834.98x = 2,131,742,912,427,184.50 - Step 5: Solve for x
x = 2,131,742,912,427,184.50/71,104,834.98 - Step 6: Final answer
x = 29,980,280.71
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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.