Finding the Fourth Proportional to 130,160,988.24, 179,621,670.85 and 71,424,636.09
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Solution
The fourth proportional to 130,160,988.24, 179,621,670.85 and 71,424,636.09 is: 98,565,727.32
Step by Step Solution
- Step 1: Write the proportion equation
130,160,988.24 : 179,621,670.85 = 71,424,636.09 : x - Step 2: Convert to fraction form
130,160,988.24/179,621,670.85 = 71,424,636.09/x - Step 3: Cross multiply
130,160,988.24x = 179,621,670.85 × 71,424,636.09 - Step 4: Simplify right side
130,160,988.24x = 12,829,412,474,339,012 - Step 5: Solve for x
x = 12,829,412,474,339,012/130,160,988.24 - Step 6: Final answer
x = 98,565,727.32
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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.