Finding the Fourth Proportional to 203,919,775.76, 305,879,963.88 and 155,671,579.28
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Solution
The fourth proportional to 203,919,775.76, 305,879,963.88 and 155,671,579.28 is: 233,507,598.12
Step by Step Solution
- Step 1: Write the proportion equation
203,919,775.76 : 305,879,963.88 = 155,671,579.28 : x - Step 2: Convert to fraction form
203,919,775.76/305,879,963.88 = 155,671,579.28/x - Step 3: Cross multiply
203,919,775.76x = 305,879,963.88 × 155,671,579.28 - Step 4: Simplify right side
203,919,775.76x = 47,616,817,047,308,960 - Step 5: Solve for x
x = 47,616,817,047,308,960/203,919,775.76 - Step 6: Final answer
x = 233,507,598.12
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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.