Finding the Fourth Proportional to 143,769,497.70, 215,654,246.55 and 118,260,329.70
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Solution
The fourth proportional to 143,769,497.70, 215,654,246.55 and 118,260,329.70 is: 177,390,494.55
Step by Step Solution
- Step 1: Write the proportion equation
143,769,497.70 : 215,654,246.55 = 118,260,329.70 : x - Step 2: Convert to fraction form
143,769,497.70/215,654,246.55 = 118,260,329.70/x - Step 3: Cross multiply
143,769,497.70x = 215,654,246.55 × 118,260,329.70 - Step 4: Simplify right side
143,769,497.70x = 25,503,342,298,208,088 - Step 5: Solve for x
x = 25,503,342,298,208,088/143,769,497.70 - Step 6: Final answer
x = 177,390,494.55
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1.5x scale
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.