Finding the Fourth Proportional to 129,873,209,330.08, 179,161,340,299.74 and 112,701,962,003.83
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Solution
The fourth proportional to 129,873,209,330.08, 179,161,340,299.74 and 112,701,962,003.83 is: 155,473,439,604.45
Step by Step Solution
- Step 1: Write the proportion equation
129,873,209,330.08 : 179,161,340,299.74 = 112,701,962,003.83 : x - Step 2: Convert to fraction form
129,873,209,330.08/179,161,340,299.74 = 112,701,962,003.83/x - Step 3: Cross multiply
129,873,209,330.08x = 179,161,340,299.74 × 112,701,962,003.83 - Step 4: Simplify right side
129,873,209,330.08x = 20,191,834,567,016,552,857,600 - Step 5: Solve for x
x = 20,191,834,567,016,552,857,600/129,873,209,330.08 - Step 6: Final answer
x = 155,473,439,604.45
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1.5x scale
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.