Finding the Fourth Proportional to 159,430,257.60, 239,145,386.40 and 51,724,881.60
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Solution
The fourth proportional to 159,430,257.60, 239,145,386.40 and 51,724,881.60 is: 77,587,322.40
Step by Step Solution
- Step 1: Write the proportion equation
159,430,257.60 : 239,145,386.40 = 51,724,881.60 : x - Step 2: Convert to fraction form
159,430,257.60/239,145,386.40 = 51,724,881.60/x - Step 3: Cross multiply
159,430,257.60x = 239,145,386.40 × 51,724,881.60 - Step 4: Simplify right side
159,430,257.60x = 12,369,766,796,726,250 - Step 5: Solve for x
x = 12,369,766,796,726,250/159,430,257.60 - Step 6: Final answer
x = 77,587,322.40
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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.