Finding the Fourth Proportional to 1,128,502,181.18, 1,557,146,154.53 and 652,236,899.92
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Solution
The fourth proportional to 1,128,502,181.18, 1,557,146,154.53 and 652,236,899.92 is: 899,978,925.59
Step by Step Solution
- Step 1: Write the proportion equation
1,128,502,181.18 : 1,557,146,154.53 = 652,236,899.92 : x - Step 2: Convert to fraction form
1,128,502,181.18/1,557,146,154.53 = 652,236,899.92/x - Step 3: Cross multiply
1,128,502,181.18x = 1,557,146,154.53 × 652,236,899.92 - Step 4: Simplify right side
1,128,502,181.18x = 1,015,628,180,550,734,208 - Step 5: Solve for x
x = 1,015,628,180,550,734,208/1,128,502,181.18 - Step 6: Final answer
x = 899,978,925.59
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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.