Finding the Fourth Proportional to 77,813,216.88, 107,395,302.60 and 52,683,930.72
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Solution
The fourth proportional to 77,813,216.88, 107,395,302.60 and 52,683,930.72 is: 72,712,668.99
Step by Step Solution
- Step 1: Write the proportion equation
77,813,216.88 : 107,395,302.60 = 52,683,930.72 : x - Step 2: Convert to fraction form
77,813,216.88/107,395,302.60 = 52,683,930.72/x - Step 3: Cross multiply
77,813,216.88x = 107,395,302.60 × 52,683,930.72 - Step 4: Simplify right side
77,813,216.88x = 5,658,006,681,831,835 - Step 5: Solve for x
x = 5,658,006,681,831,835/77,813,216.88 - Step 6: Final answer
x = 72,712,668.99
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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.