Finding the Fourth Proportional to 156,357,474.72, 215,683,668 and 97,517,987.52
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Solution
The fourth proportional to 156,357,474.72, 215,683,668 and 97,517,987.52 is: 134,518,911.12
Step by Step Solution
- Step 1: Write the proportion equation
156,357,474.72 : 215,683,668 = 97,517,987.52 : x - Step 2: Convert to fraction form
156,357,474.72/215,683,668 = 97,517,987.52/x - Step 3: Cross multiply
156,357,474.72x = 215,683,668 × 97,517,987.52 - Step 4: Simplify right side
156,357,474.72x = 21,033,037,244,291,824 - Step 5: Solve for x
x = 21,033,037,244,291,824/156,357,474.72 - Step 6: Final answer
x = 134,518,911.12
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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.