Finding the Fourth Proportional to 1,267,576,911.20, 1,901,365,366.80 and 578,829,375.20
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Solution
The fourth proportional to 1,267,576,911.20, 1,901,365,366.80 and 578,829,375.20 is: 868,244,062.80
Step by Step Solution
- Step 1: Write the proportion equation
1,267,576,911.20 : 1,901,365,366.80 = 578,829,375.20 : x - Step 2: Convert to fraction form
1,267,576,911.20/1,901,365,366.80 = 578,829,375.20/x - Step 3: Cross multiply
1,267,576,911.20x = 1,901,365,366.80 × 578,829,375.20 - Step 4: Simplify right side
1,267,576,911.20x = 1,100,566,127,291,762,944 - Step 5: Solve for x
x = 1,100,566,127,291,762,944/1,267,576,911.20 - Step 6: Final answer
x = 868,244,062.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.