Finding the Fourth Proportional to 137,240,977.99, 189,395,840.39 and 74,519,719.32
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Solution
The fourth proportional to 137,240,977.99, 189,395,840.39 and 74,519,719.32 is: 102,838,999.50
Step by Step Solution
- Step 1: Write the proportion equation
137,240,977.99 : 189,395,840.39 = 74,519,719.32 : x - Step 2: Convert to fraction form
137,240,977.99/189,395,840.39 = 74,519,719.32/x - Step 3: Cross multiply
137,240,977.99x = 189,395,840.39 × 74,519,719.32 - Step 4: Simplify right side
137,240,977.99x = 14,113,724,866,238,316 - Step 5: Solve for x
x = 14,113,724,866,238,316/137,240,977.99 - Step 6: Final answer
x = 102,838,999.50
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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.