Finding the Fourth Proportional to 8,578,698.16, 11,838,560.52 and 4,658,419.40
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Solution
The fourth proportional to 8,578,698.16, 11,838,560.52 and 4,658,419.40 is: 6,428,595.45
Step by Step Solution
- Step 1: Write the proportion equation
8,578,698.16 : 11,838,560.52 = 4,658,419.40 : x - Step 2: Convert to fraction form
8,578,698.16/11,838,560.52 = 4,658,419.40/x - Step 3: Cross multiply
8,578,698.16x = 11,838,560.52 × 4,658,419.40 - Step 4: Simplify right side
8,578,698.16x = 55,148,979,994,442.09 - Step 5: Solve for x
x = 55,148,979,994,442.09/8,578,698.16 - Step 6: Final answer
x = 6,428,595.45
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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.