Finding the Fourth Proportional to 5,220,230,598.29, 7,830,133,542.47 and 1,289,837,779.96
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Solution
The fourth proportional to 5,220,230,598.29, 7,830,133,542.47 and 1,289,837,779.96 is: 1,934,704,200.33
Step by Step Solution
- Step 1: Write the proportion equation
5,220,230,598.29 : 7,830,133,542.47 = 1,289,837,779.96 : x - Step 2: Convert to fraction form
5,220,230,598.29/7,830,133,542.47 = 1,289,837,779.96/x - Step 3: Cross multiply
5,220,230,598.29x = 7,830,133,542.47 × 1,289,837,779.96 - Step 4: Simplify right side
5,220,230,598.29x = 10,099,602,065,209,835,520 - Step 5: Solve for x
x = 10,099,602,065,209,835,520/5,220,230,598.29 - Step 6: Final answer
x = 1,934,704,200.33
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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.