Finding the Fourth Proportional to 1,302,516,243.20, 1,953,848,842.68 and 369,766,132.96
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Solution
The fourth proportional to 1,302,516,243.20, 1,953,848,842.68 and 369,766,132.96 is: 554,670,342.67
Step by Step Solution
- Step 1: Write the proportion equation
1,302,516,243.20 : 1,953,848,842.68 = 369,766,132.96 : x - Step 2: Convert to fraction form
1,302,516,243.20/1,953,848,842.68 = 369,766,132.96/x - Step 3: Cross multiply
1,302,516,243.20x = 1,953,848,842.68 × 369,766,132.96 - Step 4: Simplify right side
1,302,516,243.20x = 722,467,130,946,155,008 - Step 5: Solve for x
x = 722,467,130,946,155,008/1,302,516,243.20 - Step 6: Final answer
x = 554,670,342.67
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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.