Finding the Fourth Proportional to 112,031,421.80, 168,047,132.70 and 107,726,749.70
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Solution
The fourth proportional to 112,031,421.80, 168,047,132.70 and 107,726,749.70 is: 161,590,124.55
Step by Step Solution
- Step 1: Write the proportion equation
112,031,421.80 : 168,047,132.70 = 107,726,749.70 : x - Step 2: Convert to fraction form
112,031,421.80/168,047,132.70 = 107,726,749.70/x - Step 3: Cross multiply
112,031,421.80x = 168,047,132.70 × 107,726,749.70 - Step 4: Simplify right side
112,031,421.80x = 18,103,171,402,175,584 - Step 5: Solve for x
x = 18,103,171,402,175,584/112,031,421.80 - Step 6: Final answer
x = 161,590,124.55
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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.