Finding the Fourth Proportional to 1,438,196,305.44, 1,984,710,870.36 and 778,146,583.44
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Solution
The fourth proportional to 1,438,196,305.44, 1,984,710,870.36 and 778,146,583.44 is: 1,073,842,268.29
Step by Step Solution
- Step 1: Write the proportion equation
1,438,196,305.44 : 1,984,710,870.36 = 778,146,583.44 : x - Step 2: Convert to fraction form
1,438,196,305.44/1,984,710,870.36 = 778,146,583.44/x - Step 3: Cross multiply
1,438,196,305.44x = 1,984,710,870.36 × 778,146,583.44 - Step 4: Simplify right side
1,438,196,305.44x = 1,544,395,982,886,862,848 - Step 5: Solve for x
x = 1,544,395,982,886,862,848/1,438,196,305.44 - Step 6: Final answer
x = 1,073,842,268.29
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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.