Finding the Fourth Proportional to 87,742,307.40, 121,088,036.16 and 48,584,083.02
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Solution
The fourth proportional to 87,742,307.40, 121,088,036.16 and 48,584,083.02 is: 67,048,056.70
Step by Step Solution
- Step 1: Write the proportion equation
87,742,307.40 : 121,088,036.16 = 48,584,083.02 : x - Step 2: Convert to fraction form
87,742,307.40/121,088,036.16 = 48,584,083.02/x - Step 3: Cross multiply
87,742,307.40x = 121,088,036.16 × 48,584,083.02 - Step 4: Simplify right side
87,742,307.40x = 5,882,951,201,526,202 - Step 5: Solve for x
x = 5,882,951,201,526,202/87,742,307.40 - Step 6: Final answer
x = 67,048,056.70
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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.