Finding the Fourth Proportional to 386,571,938,970.63, 533,485,810,023.57 and 215,293,842,995.47
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Solution
The fourth proportional to 386,571,938,970.63, 533,485,810,023.57 and 215,293,842,995.47 is: 297,114,711,764.56
Step by Step Solution
- Step 1: Write the proportion equation
386,571,938,970.63 : 533,485,810,023.57 = 215,293,842,995.47 : x - Step 2: Convert to fraction form
386,571,938,970.63/533,485,810,023.57 = 215,293,842,995.47/x - Step 3: Cross multiply
386,571,938,970.63x = 533,485,810,023.57 × 215,293,842,995.47 - Step 4: Simplify right side
386,571,938,970.63x = 114,856,210,223,525,609,340,928 - Step 5: Solve for x
x = 114,856,210,223,525,609,340,928/386,571,938,970.63 - Step 6: Final answer
x = 297,114,711,764.56
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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.