Finding the Fourth Proportional to 1,203,312,711.52, 1,660,174,599.42 and 726,825,040.12
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Solution
The fourth proportional to 1,203,312,711.52, 1,660,174,599.42 and 726,825,040.12 is: 1,002,778,794.14
Step by Step Solution
- Step 1: Write the proportion equation
1,203,312,711.52 : 1,660,174,599.42 = 726,825,040.12 : x - Step 2: Convert to fraction form
1,203,312,711.52/1,660,174,599.42 = 726,825,040.12/x - Step 3: Cross multiply
1,203,312,711.52x = 1,660,174,599.42 × 726,825,040.12 - Step 4: Simplify right side
1,203,312,711.52x = 1,206,656,469,829,646,592 - Step 5: Solve for x
x = 1,206,656,469,829,646,592/1,203,312,711.52 - Step 6: Final answer
x = 1,002,778,794.14
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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.