Finding the Fourth Proportional to 1,642,765,671.36, 2,267,127,853.06 and 928,053,340.12
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Solution
The fourth proportional to 1,642,765,671.36, 2,267,127,853.06 and 928,053,340.12 is: 1,280,776,444.99
Step by Step Solution
- Step 1: Write the proportion equation
1,642,765,671.36 : 2,267,127,853.06 = 928,053,340.12 : x - Step 2: Convert to fraction form
1,642,765,671.36/2,267,127,853.06 = 928,053,340.12/x - Step 3: Cross multiply
1,642,765,671.36x = 2,267,127,853.06 × 928,053,340.12 - Step 4: Simplify right side
1,642,765,671.36x = 2,104,015,576,511,417,600 - Step 5: Solve for x
x = 2,104,015,576,511,417,600/1,642,765,671.36 - Step 6: Final answer
x = 1,280,776,444.99
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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.