Finding the Fourth Proportional to 1,869,178,939.20, 2,804,033,829.60 and 576,579,643.20
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Solution
The fourth proportional to 1,869,178,939.20, 2,804,033,829.60 and 576,579,643.20 is: 864,951,338.30
Step by Step Solution
- Step 1: Write the proportion equation
1,869,178,939.20 : 2,804,033,829.60 = 576,579,643.20 : x - Step 2: Convert to fraction form
1,869,178,939.20/2,804,033,829.60 = 576,579,643.20/x - Step 3: Cross multiply
1,869,178,939.20x = 2,804,033,829.60 × 576,579,643.20 - Step 4: Simplify right side
1,869,178,939.20x = 1,616,748,824,991,497,728 - Step 5: Solve for x
x = 1,616,748,824,991,497,728/1,869,178,939.20 - Step 6: Final answer
x = 864,951,338.30
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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.