Finding the Fourth Proportional to 180,558,349.60, 249,246,790.80 and 121,900,462.24
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Solution
The fourth proportional to 180,558,349.60, 249,246,790.80 and 121,900,462.24 is: 168,274,128.99
Step by Step Solution
- Step 1: Write the proportion equation
180,558,349.60 : 249,246,790.80 = 121,900,462.24 : x - Step 2: Convert to fraction form
180,558,349.60/249,246,790.80 = 121,900,462.24/x - Step 3: Cross multiply
180,558,349.60x = 249,246,790.80 × 121,900,462.24 - Step 4: Simplify right side
180,558,349.60x = 30,383,299,010,356,580 - Step 5: Solve for x
x = 30,383,299,010,356,580/180,558,349.60 - Step 6: Final answer
x = 168,274,128.99
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1.5x scale
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.