Finding the Fourth Proportional to 153,110,202.03, 211,292,412.98 and 87,031,105.11
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Solution
The fourth proportional to 153,110,202.03, 211,292,412.98 and 87,031,105.11 is: 120,103,115.00
Step by Step Solution
- Step 1: Write the proportion equation
153,110,202.03 : 211,292,412.98 = 87,031,105.11 : x - Step 2: Convert to fraction form
153,110,202.03/211,292,412.98 = 87,031,105.11/x - Step 3: Cross multiply
153,110,202.03x = 211,292,412.98 × 87,031,105.11 - Step 4: Simplify right side
153,110,202.03x = 18,389,012,202,572,752 - Step 5: Solve for x
x = 18,389,012,202,572,752/153,110,202.03 - Step 6: Final answer
x = 120,103,115.00
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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.