Finding the Fourth Proportional to 257,764,536.86, 386,896,509.92 and 243,765,944.96
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Solution
The fourth proportional to 257,764,536.86, 386,896,509.92 and 243,765,944.96 is: 365,885,061.20
Step by Step Solution
- Step 1: Write the proportion equation
257,764,536.86 : 386,896,509.92 = 243,765,944.96 : x - Step 2: Convert to fraction form
257,764,536.86/386,896,509.92 = 243,765,944.96/x - Step 3: Cross multiply
257,764,536.86x = 386,896,509.92 × 243,765,944.96 - Step 4: Simplify right side
257,764,536.86x = 94,312,193,343,224,096 - Step 5: Solve for x
x = 94,312,193,343,224,096/257,764,536.86 - Step 6: Final answer
x = 365,885,061.20
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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.