Finding the Fourth Proportional to 409,202,497.80, 613,803,746.70 and 245,943,822.60
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Solution
The fourth proportional to 409,202,497.80, 613,803,746.70 and 245,943,822.60 is: 368,915,733.90
Step by Step Solution
- Step 1: Write the proportion equation
409,202,497.80 : 613,803,746.70 = 245,943,822.60 : x - Step 2: Convert to fraction form
409,202,497.80/613,803,746.70 = 245,943,822.60/x - Step 3: Cross multiply
409,202,497.80x = 613,803,746.70 × 245,943,822.60 - Step 4: Simplify right side
409,202,497.80x = 150,961,239,789,600,128 - Step 5: Solve for x
x = 150,961,239,789,600,128/409,202,497.80 - Step 6: Final answer
x = 368,915,733.90
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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.