Finding the Fourth Proportional to 401,620,201.60, 602,430,302.40 and 279,176,195.20
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Solution
The fourth proportional to 401,620,201.60, 602,430,302.40 and 279,176,195.20 is: 418,764,292.80
Step by Step Solution
- Step 1: Write the proportion equation
401,620,201.60 : 602,430,302.40 = 279,176,195.20 : x - Step 2: Convert to fraction form
401,620,201.60/602,430,302.40 = 279,176,195.20/x - Step 3: Cross multiply
401,620,201.60x = 602,430,302.40 × 279,176,195.20 - Step 4: Simplify right side
401,620,201.60x = 168,184,199,697,217,408 - Step 5: Solve for x
x = 168,184,199,697,217,408/401,620,201.60 - Step 6: Final answer
x = 418,764,292.80
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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.