Finding the Fourth Proportional to 368,259,564.72, 508,195,695.96 and 203,247,129.36
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Solution
The fourth proportional to 368,259,564.72, 508,195,695.96 and 203,247,129.36 is: 280,479,656.88
Step by Step Solution
- Step 1: Write the proportion equation
368,259,564.72 : 508,195,695.96 = 203,247,129.36 : x - Step 2: Convert to fraction form
368,259,564.72/508,195,695.96 = 203,247,129.36/x - Step 3: Cross multiply
368,259,564.72x = 508,195,695.96 × 203,247,129.36 - Step 4: Simplify right side
368,259,564.72x = 103,289,316,356,977,360 - Step 5: Solve for x
x = 103,289,316,356,977,360/368,259,564.72 - Step 6: Final answer
x = 280,479,656.88
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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.