Finding the Fourth Proportional to 115,311,016.18, 159,132,328.41 and 70,656,215.95
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Solution
The fourth proportional to 115,311,016.18, 159,132,328.41 and 70,656,215.95 is: 97,507,493.50
Step by Step Solution
- Step 1: Write the proportion equation
115,311,016.18 : 159,132,328.41 = 70,656,215.95 : x - Step 2: Convert to fraction form
115,311,016.18/159,132,328.41 = 70,656,215.95/x - Step 3: Cross multiply
115,311,016.18x = 159,132,328.41 × 70,656,215.95 - Step 4: Simplify right side
115,311,016.18x = 11,243,688,160,763,280 - Step 5: Solve for x
x = 11,243,688,160,763,280/115,311,016.18 - Step 6: Final answer
x = 97,507,493.50
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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.