Finding the Fourth Proportional to 1,049,076,119.79, 1,448,378,404.30 and 667,813,277.05
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Solution
The fourth proportional to 1,049,076,119.79, 1,448,378,404.30 and 667,813,277.05 is: 921,998,232.86
Step by Step Solution
- Step 1: Write the proportion equation
1,049,076,119.79 : 1,448,378,404.30 = 667,813,277.05 : x - Step 2: Convert to fraction form
1,049,076,119.79/1,448,378,404.30 = 667,813,277.05/x - Step 3: Cross multiply
1,049,076,119.79x = 1,448,378,404.30 × 667,813,277.05 - Step 4: Simplify right side
1,049,076,119.79x = 967,246,328,584,032,768 - Step 5: Solve for x
x = 967,246,328,584,032,768/1,049,076,119.79 - Step 6: Final answer
x = 921,998,232.86
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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.