Finding the Fourth Proportional to 663,809,107.20, 927,518,764.80 and 663,809,107.20
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Solution
The fourth proportional to 663,809,107.20, 927,518,764.80 and 663,809,107.20 is: 927,518,764.80
Step by Step Solution
- Step 1: Write the proportion equation
663,809,107.20 : 927,518,764.80 = 663,809,107.20 : x - Step 2: Convert to fraction form
663,809,107.20/927,518,764.80 = 663,809,107.20/x - Step 3: Cross multiply
663,809,107.20x = 927,518,764.80 × 663,809,107.20 - Step 4: Simplify right side
663,809,107.20x = 615,695,403,173,134,848 - Step 5: Solve for x
x = 615,695,403,173,134,848/663,809,107.20 - Step 6: Final answer
x = 927,518,764.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.