Finding the Fourth Proportional to 134,774,643.60, 202,161,965.40 and 129,483,853.20
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Solution
The fourth proportional to 134,774,643.60, 202,161,965.40 and 129,483,853.20 is: 194,225,779.80
Step by Step Solution
- Step 1: Write the proportion equation
134,774,643.60 : 202,161,965.40 = 129,483,853.20 : x - Step 2: Convert to fraction form
134,774,643.60/202,161,965.40 = 129,483,853.20/x - Step 3: Cross multiply
134,774,643.60x = 202,161,965.40 × 129,483,853.20 - Step 4: Simplify right side
134,774,643.60x = 26,176,710,250,477,080 - Step 5: Solve for x
x = 26,176,710,250,477,080/134,774,643.60 - Step 6: Final answer
x = 194,225,779.80
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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.