Finding the Fourth Proportional to 5,707,878.84, 7,877,118.78 and 3,415,598.28
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Solution
The fourth proportional to 5,707,878.84, 7,877,118.78 and 3,415,598.28 is: 4,713,672.82
Step by Step Solution
- Step 1: Write the proportion equation
5,707,878.84 : 7,877,118.78 = 3,415,598.28 : x - Step 2: Convert to fraction form
5,707,878.84/7,877,118.78 = 3,415,598.28/x - Step 3: Cross multiply
5,707,878.84x = 7,877,118.78 × 3,415,598.28 - Step 4: Simplify right side
5,707,878.84x = 26,905,073,356,323.70 - Step 5: Solve for x
x = 26,905,073,356,323.70/5,707,878.84 - Step 6: Final answer
x = 4,713,672.82
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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.