Finding the Fourth Proportional to 612,584,209.57, 845,437,678.51 and 348,305,800.97
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Solution
The fourth proportional to 612,584,209.57, 845,437,678.51 and 348,305,800.97 is: 480,702,641.67
Step by Step Solution
- Step 1: Write the proportion equation
612,584,209.57 : 845,437,678.51 = 348,305,800.97 : x - Step 2: Convert to fraction form
612,584,209.57/845,437,678.51 = 348,305,800.97/x - Step 3: Cross multiply
612,584,209.57x = 845,437,678.51 × 348,305,800.97 - Step 4: Simplify right side
612,584,209.57x = 294,470,847,783,642,944 - Step 5: Solve for x
x = 294,470,847,783,642,944/612,584,209.57 - Step 6: Final answer
x = 480,702,641.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.