Finding the Fourth Proportional to 5,390,784.64, 7,439,386.38 and 2,943,492.68
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Solution
The fourth proportional to 5,390,784.64, 7,439,386.38 and 2,943,492.68 is: 4,062,076.45
Step by Step Solution
- Step 1: Write the proportion equation
5,390,784.64 : 7,439,386.38 = 2,943,492.68 : x - Step 2: Convert to fraction form
5,390,784.64/7,439,386.38 = 2,943,492.68/x - Step 3: Cross multiply
5,390,784.64x = 7,439,386.38 × 2,943,492.68 - Step 4: Simplify right side
5,390,784.64x = 21,897,779,353,221.70 - Step 5: Solve for x
x = 21,897,779,353,221.70/5,390,784.64 - Step 6: Final answer
x = 4,062,076.45
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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.