Finding the Fourth Proportional to 1,295,029,207.80, 1,942,543,811.70 and 907,289,854.20
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Solution
The fourth proportional to 1,295,029,207.80, 1,942,543,811.70 and 907,289,854.20 is: 1,360,934,781.30
Step by Step Solution
- Step 1: Write the proportion equation
1,295,029,207.80 : 1,942,543,811.70 = 907,289,854.20 : x - Step 2: Convert to fraction form
1,295,029,207.80/1,942,543,811.70 = 907,289,854.20/x - Step 3: Cross multiply
1,295,029,207.80x = 1,942,543,811.70 × 907,289,854.20 - Step 4: Simplify right side
1,295,029,207.80x = 1,762,450,291,694,405,376 - Step 5: Solve for x
x = 1,762,450,291,694,405,376/1,295,029,207.80 - Step 6: Final answer
x = 1,360,934,781.30
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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.