Finding the Fourth Proportional to 99,643,727.80, 149,465,591.70 and 79,488,335.80
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Solution
The fourth proportional to 99,643,727.80, 149,465,591.70 and 79,488,335.80 is: 119,232,503.70
Step by Step Solution
- Step 1: Write the proportion equation
99,643,727.80 : 149,465,591.70 = 79,488,335.80 : x - Step 2: Convert to fraction form
99,643,727.80/149,465,591.70 = 79,488,335.80/x - Step 3: Cross multiply
99,643,727.80x = 149,465,591.70 × 79,488,335.80 - Step 4: Simplify right side
99,643,727.80x = 11,880,771,143,595,292 - Step 5: Solve for x
x = 11,880,771,143,595,292/99,643,727.80 - Step 6: Final answer
x = 119,232,503.70
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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.