Finding the Fourth Proportional to 80,970,897.55, 121,358,764.42 and 37,191,243.13
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Solution
The fourth proportional to 80,970,897.55, 121,358,764.42 and 37,191,243.13 is: 55,742,043.75
Step by Step Solution
- Step 1: Write the proportion equation
80,970,897.55 : 121,358,764.42 = 37,191,243.13 : x - Step 2: Convert to fraction form
80,970,897.55/121,358,764.42 = 37,191,243.13/x - Step 3: Cross multiply
80,970,897.55x = 121,358,764.42 × 37,191,243.13 - Step 4: Simplify right side
80,970,897.55x = 4,513,483,313,500,614 - Step 5: Solve for x
x = 4,513,483,313,500,614/80,970,897.55 - Step 6: Final answer
x = 55,742,043.75
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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.