Finding the Fourth Proportional to 2,086,311,991.80, 3,129,845,901.30 and 1,048,561,246.20
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Solution
The fourth proportional to 2,086,311,991.80, 3,129,845,901.30 and 1,048,561,246.20 is: 1,573,031,805.20
Step by Step Solution
- Step 1: Write the proportion equation
2,086,311,991.80 : 3,129,845,901.30 = 1,048,561,246.20 : x - Step 2: Convert to fraction form
2,086,311,991.80/3,129,845,901.30 = 1,048,561,246.20/x - Step 3: Cross multiply
2,086,311,991.80x = 3,129,845,901.30 × 1,048,561,246.20 - Step 4: Simplify right side
2,086,311,991.80x = 3,281,835,118,681,090,560 - Step 5: Solve for x
x = 3,281,835,118,681,090,560/2,086,311,991.80 - Step 6: Final answer
x = 1,573,031,805.20
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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.