Finding the Fourth Proportional to 45,786,656.90, 68,679,985.35 and 13,869,805.70
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Solution
The fourth proportional to 45,786,656.90, 68,679,985.35 and 13,869,805.70 is: 20,804,708.55
Step by Step Solution
- Step 1: Write the proportion equation
45,786,656.90 : 68,679,985.35 = 13,869,805.70 : x - Step 2: Convert to fraction form
45,786,656.90/68,679,985.35 = 13,869,805.70/x - Step 3: Cross multiply
45,786,656.90x = 68,679,985.35 × 13,869,805.70 - Step 4: Simplify right side
45,786,656.90x = 952,578,052,283,346.38 - Step 5: Solve for x
x = 952,578,052,283,346.38/45,786,656.90 - Step 6: Final answer
x = 20,804,708.55
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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.