Finding the Fourth Proportional to 1,486,476,393.38, 2,050,835,327.58 and 842,663,258.68
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Solution
The fourth proportional to 1,486,476,393.38, 2,050,835,327.58 and 842,663,258.68 is: 1,162,590,665.99
Step by Step Solution
- Step 1: Write the proportion equation
1,486,476,393.38 : 2,050,835,327.58 = 842,663,258.68 : x - Step 2: Convert to fraction form
1,486,476,393.38/2,050,835,327.58 = 842,663,258.68/x - Step 3: Cross multiply
1,486,476,393.38x = 2,050,835,327.58 × 842,663,258.68 - Step 4: Simplify right side
1,486,476,393.38x = 1,728,163,580,154,627,840 - Step 5: Solve for x
x = 1,728,163,580,154,627,840/1,486,476,393.38 - Step 6: Final answer
x = 1,162,590,665.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.