Finding the Fourth Proportional to 77,701,132.20, 107,224,752 and 42,893,075.28
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Solution
The fourth proportional to 77,701,132.20, 107,224,752 and 42,893,075.28 is: 59,190,892.45
Step by Step Solution
- Step 1: Write the proportion equation
77,701,132.20 : 107,224,752 = 42,893,075.28 : x - Step 2: Convert to fraction form
77,701,132.20/107,224,752 = 42,893,075.28/x - Step 3: Cross multiply
77,701,132.20x = 107,224,752 × 42,893,075.28 - Step 4: Simplify right side
77,701,132.20x = 4,599,199,359,415,331 - Step 5: Solve for x
x = 4,599,199,359,415,331/77,701,132.20 - Step 6: Final answer
x = 59,190,892.45
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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.