Finding the Fourth Proportional to 2,620,405,055.70, 3,930,607,583.55 and 1,242,909,983.70
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Solution
The fourth proportional to 2,620,405,055.70, 3,930,607,583.55 and 1,242,909,983.70 is: 1,864,364,975.55
Step by Step Solution
- Step 1: Write the proportion equation
2,620,405,055.70 : 3,930,607,583.55 = 1,242,909,983.70 : x - Step 2: Convert to fraction form
2,620,405,055.70/3,930,607,583.55 = 1,242,909,983.70/x - Step 3: Cross multiply
2,620,405,055.70x = 3,930,607,583.55 × 1,242,909,983.70 - Step 4: Simplify right side
2,620,405,055.70x = 4,885,391,407,601,227,776 - Step 5: Solve for x
x = 4,885,391,407,601,227,776/2,620,405,055.70 - Step 6: Final answer
x = 1,864,364,975.55
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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.