Finding the Fourth Proportional to 4,971,774.15, 6,860,980.59 and 2,796,316.44
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Solution
The fourth proportional to 4,971,774.15, 6,860,980.59 and 2,796,316.44 is: 3,858,878.59
Step by Step Solution
- Step 1: Write the proportion equation
4,971,774.15 : 6,860,980.59 = 2,796,316.44 : x - Step 2: Convert to fraction form
4,971,774.15/6,860,980.59 = 2,796,316.44/x - Step 3: Cross multiply
4,971,774.15x = 6,860,980.59 × 2,796,316.44 - Step 4: Simplify right side
4,971,774.15x = 19,185,472,818,337.90 - Step 5: Solve for x
x = 19,185,472,818,337.90/4,971,774.15 - Step 6: Final answer
x = 3,858,878.59
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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.