Finding the Fourth Proportional to 159,430,257.60, 239,145,386.40 and 145,321,483.20
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Solution
The fourth proportional to 159,430,257.60, 239,145,386.40 and 145,321,483.20 is: 217,982,224.80
Step by Step Solution
- Step 1: Write the proportion equation
159,430,257.60 : 239,145,386.40 = 145,321,483.20 : x - Step 2: Convert to fraction form
159,430,257.60/239,145,386.40 = 145,321,483.20/x - Step 3: Cross multiply
159,430,257.60x = 239,145,386.40 × 145,321,483.20 - Step 4: Simplify right side
159,430,257.60x = 34,752,962,252,085,108 - Step 5: Solve for x
x = 34,752,962,252,085,108/159,430,257.60 - Step 6: Final answer
x = 217,982,224.80
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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.