Finding the Fourth Proportional to 85,891,507.60, 128,837,261.40 and 44,935,121.20
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Solution
The fourth proportional to 85,891,507.60, 128,837,261.40 and 44,935,121.20 is: 67,402,681.80
Step by Step Solution
- Step 1: Write the proportion equation
85,891,507.60 : 128,837,261.40 = 44,935,121.20 : x - Step 2: Convert to fraction form
85,891,507.60/128,837,261.40 = 44,935,121.20/x - Step 3: Cross multiply
85,891,507.60x = 128,837,261.40 × 44,935,121.20 - Step 4: Simplify right side
85,891,507.60x = 5,789,317,956,085,082 - Step 5: Solve for x
x = 5,789,317,956,085,082/85,891,507.60 - Step 6: Final answer
x = 67,402,681.80
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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.