Finding the Fourth Proportional to 217,812,420.64, 326,717,447.28 and 125,636,407.84
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Solution
The fourth proportional to 217,812,420.64, 326,717,447.28 and 125,636,407.84 is: 188,453,929.00
Step by Step Solution
- Step 1: Write the proportion equation
217,812,420.64 : 326,717,447.28 = 125,636,407.84 : x - Step 2: Convert to fraction form
217,812,420.64/326,717,447.28 = 125,636,407.84/x - Step 3: Cross multiply
217,812,420.64x = 326,717,447.28 × 125,636,407.84 - Step 4: Simplify right side
217,812,420.64x = 41,047,606,454,913,776 - Step 5: Solve for x
x = 41,047,606,454,913,776/217,812,420.64 - Step 6: Final answer
x = 188,453,929.00
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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.