Finding the Fourth Proportional to 775,732,371.86, 1,070,533,388.99 and 423,331,072.74
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Solution
The fourth proportional to 775,732,371.86, 1,070,533,388.99 and 423,331,072.74 is: 584,209,276.81
Step by Step Solution
- Step 1: Write the proportion equation
775,732,371.86 : 1,070,533,388.99 = 423,331,072.74 : x - Step 2: Convert to fraction form
775,732,371.86/1,070,533,388.99 = 423,331,072.74/x - Step 3: Cross multiply
775,732,371.86x = 1,070,533,388.99 × 423,331,072.74 - Step 4: Simplify right side
775,732,371.86x = 453,190,047,966,182,720 - Step 5: Solve for x
x = 453,190,047,966,182,720/775,732,371.86 - Step 6: Final answer
x = 584,209,276.81
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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.