Finding the Fourth Proportional to 74,909,043.94, 112,363,566.18 and 21,056,355.94
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Solution
The fourth proportional to 74,909,043.94, 112,363,566.18 and 21,056,355.94 is: 31,584,533.98
Step by Step Solution
- Step 1: Write the proportion equation
74,909,043.94 : 112,363,566.18 = 21,056,355.94 : x - Step 2: Convert to fraction form
74,909,043.94/112,363,566.18 = 21,056,355.94/x - Step 3: Cross multiply
74,909,043.94x = 112,363,566.18 × 21,056,355.94 - Step 4: Simplify right side
74,909,043.94x = 2,365,967,243,813,956 - Step 5: Solve for x
x = 2,365,967,243,813,956/74,909,043.94 - Step 6: Final answer
x = 31,584,533.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.