Finding the Fourth Proportional to 159,460,368.40, 239,190,552.60 and 86,712,000.40
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Solution
The fourth proportional to 159,460,368.40, 239,190,552.60 and 86,712,000.40 is: 130,068,000.60
Step by Step Solution
- Step 1: Write the proportion equation
159,460,368.40 : 239,190,552.60 = 86,712,000.40 : x - Step 2: Convert to fraction form
159,460,368.40/239,190,552.60 = 86,712,000.40/x - Step 3: Cross multiply
159,460,368.40x = 239,190,552.60 × 86,712,000.40 - Step 4: Simplify right side
159,460,368.40x = 20,740,691,292,727,420 - Step 5: Solve for x
x = 20,740,691,292,727,420/159,460,368.40 - Step 6: Final answer
x = 130,068,000.60
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1.5x scale
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.