Finding the Fourth Proportional to 1,055,266,246.20, 1,582,899,369.30 and 779,767,231.80
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Solution
The fourth proportional to 1,055,266,246.20, 1,582,899,369.30 and 779,767,231.80 is: 1,169,650,847.70
Step by Step Solution
- Step 1: Write the proportion equation
1,055,266,246.20 : 1,582,899,369.30 = 779,767,231.80 : x - Step 2: Convert to fraction form
1,055,266,246.20/1,582,899,369.30 = 779,767,231.80/x - Step 3: Cross multiply
1,055,266,246.20x = 1,582,899,369.30 × 779,767,231.80 - Step 4: Simplify right side
1,055,266,246.20x = 1,234,293,059,417,026,816 - Step 5: Solve for x
x = 1,234,293,059,417,026,816/1,055,266,246.20 - Step 6: Final answer
x = 1,169,650,847.70
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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.