Finding the Fourth Proportional to 1,125,577,717.20, 1,689,878,230.20 and 718,438,798.80
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Solution
The fourth proportional to 1,125,577,717.20, 1,689,878,230.20 and 718,438,798.80 is: 1,078,623,063.76
Step by Step Solution
- Step 1: Write the proportion equation
1,125,577,717.20 : 1,689,878,230.20 = 718,438,798.80 : x - Step 2: Convert to fraction form
1,125,577,717.20/1,689,878,230.20 = 718,438,798.80/x - Step 3: Cross multiply
1,125,577,717.20x = 1,689,878,230.20 × 718,438,798.80 - Step 4: Simplify right side
1,125,577,717.20x = 1,214,074,085,823,157,760 - Step 5: Solve for x
x = 1,214,074,085,823,157,760/1,125,577,717.20 - Step 6: Final answer
x = 1,078,623,063.76
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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.