Finding the Fourth Proportional to 77,340,343.05, 106,727,541.71 and 42,533,029.53
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Solution
The fourth proportional to 77,340,343.05, 106,727,541.71 and 42,533,029.53 is: 58,694,408.43
Step by Step Solution
- Step 1: Write the proportion equation
77,340,343.05 : 106,727,541.71 = 42,533,029.53 : x - Step 2: Convert to fraction form
77,340,343.05/106,727,541.71 = 42,533,029.53/x - Step 3: Cross multiply
77,340,343.05x = 106,727,541.71 × 42,533,029.53 - Step 4: Simplify right side
77,340,343.05x = 4,539,445,683,003,072 - Step 5: Solve for x
x = 4,539,445,683,003,072/77,340,343.05 - Step 6: Final answer
x = 58,694,408.43
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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.