Finding the Fourth Proportional to 885,736,700.80, 1,328,605,051.20 and 516,893,027.20
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Solution
The fourth proportional to 885,736,700.80, 1,328,605,051.20 and 516,893,027.20 is: 775,339,540.80
Step by Step Solution
- Step 1: Write the proportion equation
885,736,700.80 : 1,328,605,051.20 = 516,893,027.20 : x - Step 2: Convert to fraction form
885,736,700.80/1,328,605,051.20 = 516,893,027.20/x - Step 3: Cross multiply
885,736,700.80x = 1,328,605,051.20 × 516,893,027.20 - Step 4: Simplify right side
885,736,700.80x = 686,746,686,867,979,008 - Step 5: Solve for x
x = 686,746,686,867,979,008/885,736,700.80 - Step 6: Final answer
x = 775,339,540.80
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Double scale
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Similar ratio
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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.