Finding the Fourth Proportional to 7,272,381.16, 10,035,963.30 and 4,009,312.66
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Solution
The fourth proportional to 7,272,381.16, 10,035,963.30 and 4,009,312.66 is: 5,532,894.09
Step by Step Solution
- Step 1: Write the proportion equation
7,272,381.16 : 10,035,963.30 = 4,009,312.66 : x - Step 2: Convert to fraction form
7,272,381.16/10,035,963.30 = 4,009,312.66/x - Step 3: Cross multiply
7,272,381.16x = 10,035,963.30 × 4,009,312.66 - Step 4: Simplify right side
7,272,381.16x = 40,237,314,713,985.38 - Step 5: Solve for x
x = 40,237,314,713,985.38/7,272,381.16 - Step 6: Final answer
x = 5,532,894.09
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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.