Finding the Fourth Proportional to 5,103,021,606.20, 7,648,485,791.70 and 2,155,295,526.20
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Solution
The fourth proportional to 5,103,021,606.20, 7,648,485,791.70 and 2,155,295,526.20 is: 3,230,389,459.65
Step by Step Solution
- Step 1: Write the proportion equation
5,103,021,606.20 : 7,648,485,791.70 = 2,155,295,526.20 : x - Step 2: Convert to fraction form
5,103,021,606.20/7,648,485,791.70 = 2,155,295,526.20/x - Step 3: Cross multiply
5,103,021,606.20x = 7,648,485,791.70 × 2,155,295,526.20 - Step 4: Simplify right side
5,103,021,606.20x = 16,484,747,209,055,272,960 - Step 5: Solve for x
x = 16,484,747,209,055,272,960/5,103,021,606.20 - Step 6: Final answer
x = 3,230,389,459.65
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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.