Finding the Fourth Proportional to 217,038,422.40, 325,935,547.20 and 115,001,750.40
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Solution
The fourth proportional to 217,038,422.40, 325,935,547.20 and 115,001,750.40 is: 172,702,869.99
Step by Step Solution
- Step 1: Write the proportion equation
217,038,422.40 : 325,935,547.20 = 115,001,750.40 : x - Step 2: Convert to fraction form
217,038,422.40/325,935,547.20 = 115,001,750.40/x - Step 3: Cross multiply
217,038,422.40x = 325,935,547.20 × 115,001,750.40 - Step 4: Simplify right side
217,038,422.40x = 37,483,158,445,581,816 - Step 5: Solve for x
x = 37,483,158,445,581,816/217,038,422.40 - Step 6: Final answer
x = 172,702,869.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.