Finding the Fourth Proportional to 1,130,757,991.80, 1,694,877,275.70 and 440,435,815.80
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Solution
The fourth proportional to 1,130,757,991.80, 1,694,877,275.70 and 440,435,815.80 is: 660,163,059.66
Step by Step Solution
- Step 1: Write the proportion equation
1,130,757,991.80 : 1,694,877,275.70 = 440,435,815.80 : x - Step 2: Convert to fraction form
1,130,757,991.80/1,694,877,275.70 = 440,435,815.80/x - Step 3: Cross multiply
1,130,757,991.80x = 1,694,877,275.70 × 440,435,815.80 - Step 4: Simplify right side
1,130,757,991.80x = 746,484,655,603,811,072 - Step 5: Solve for x
x = 746,484,655,603,811,072/1,130,757,991.80 - Step 6: Final answer
x = 660,163,059.66
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1.5x scale
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.