Finding the Fourth Proportional to 98,286,790.72, 135,684,875.64 and 61,129,048.72
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Solution
The fourth proportional to 98,286,790.72, 135,684,875.64 and 61,129,048.72 is: 84,388,627.53
Step by Step Solution
- Step 1: Write the proportion equation
98,286,790.72 : 135,684,875.64 = 61,129,048.72 : x - Step 2: Convert to fraction form
98,286,790.72/135,684,875.64 = 61,129,048.72/x - Step 3: Cross multiply
98,286,790.72x = 135,684,875.64 × 61,129,048.72 - Step 4: Simplify right side
98,286,790.72x = 8,294,287,373,564,700 - Step 5: Solve for x
x = 8,294,287,373,564,700/98,286,790.72 - Step 6: Final answer
x = 84,388,627.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.