Finding the Fourth Proportional to 1,488,984,109.80, 2,233,476,164.70 and 398,467,177.80
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Solution
The fourth proportional to 1,488,984,109.80, 2,233,476,164.70 and 398,467,177.80 is: 597,700,766.70
Step by Step Solution
- Step 1: Write the proportion equation
1,488,984,109.80 : 2,233,476,164.70 = 398,467,177.80 : x - Step 2: Convert to fraction form
1,488,984,109.80/2,233,476,164.70 = 398,467,177.80/x - Step 3: Cross multiply
1,488,984,109.80x = 2,233,476,164.70 × 398,467,177.80 - Step 4: Simplify right side
1,488,984,109.80x = 889,966,944,031,576,960 - Step 5: Solve for x
x = 889,966,944,031,576,960/1,488,984,109.80 - Step 6: Final answer
x = 597,700,766.70
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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.