Finding the Fourth Proportional to 490,422,641.84, 735,724,630.80 and 140,654,066.48
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Solution
The fourth proportional to 490,422,641.84, 735,724,630.80 and 140,654,066.48 is: 211,007,103.47
Step by Step Solution
- Step 1: Write the proportion equation
490,422,641.84 : 735,724,630.80 = 140,654,066.48 : x - Step 2: Convert to fraction form
490,422,641.84/735,724,630.80 = 140,654,066.48/x - Step 3: Cross multiply
490,422,641.84x = 735,724,630.80 × 140,654,066.48 - Step 4: Simplify right side
490,422,641.84x = 103,482,661,131,516,640 - Step 5: Solve for x
x = 103,482,661,131,516,640/490,422,641.84 - Step 6: Final answer
x = 211,007,103.47
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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.