Finding the Fourth Proportional to 576,068,419.92, 864,104,871.68 and 139,368,403.36
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Solution
The fourth proportional to 576,068,419.92, 864,104,871.68 and 139,368,403.36 is: 209,053,147.40
Step by Step Solution
- Step 1: Write the proportion equation
576,068,419.92 : 864,104,871.68 = 139,368,403.36 : x - Step 2: Convert to fraction form
576,068,419.92/864,104,871.68 = 139,368,403.36/x - Step 3: Cross multiply
576,068,419.92x = 864,104,871.68 × 139,368,403.36 - Step 4: Simplify right side
576,068,419.92x = 120,428,916,301,639,280 - Step 5: Solve for x
x = 120,428,916,301,639,280/576,068,419.92 - Step 6: Final answer
x = 209,053,147.40
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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.