Finding the Fourth Proportional to 39,705,101.70, 59,557,652.55 and 12,778,757.70
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Solution
The fourth proportional to 39,705,101.70, 59,557,652.55 and 12,778,757.70 is: 19,168,136.55
Step by Step Solution
- Step 1: Write the proportion equation
39,705,101.70 : 59,557,652.55 = 12,778,757.70 : x - Step 2: Convert to fraction form
39,705,101.70/59,557,652.55 = 12,778,757.70/x - Step 3: Cross multiply
39,705,101.70x = 59,557,652.55 × 12,778,757.70 - Step 4: Simplify right side
39,705,101.70x = 761,072,811,117,237 - Step 5: Solve for x
x = 761,072,811,117,237/39,705,101.70 - Step 6: Final answer
x = 19,168,136.55
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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.