Finding the Fourth Proportional to 1,349,035,202.68, 1,861,098,463.92 and 903,142,031.92
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Solution
The fourth proportional to 1,349,035,202.68, 1,861,098,463.92 and 903,142,031.92 is: 1,245,954,327.19
Step by Step Solution
- Step 1: Write the proportion equation
1,349,035,202.68 : 1,861,098,463.92 = 903,142,031.92 : x - Step 2: Convert to fraction form
1,349,035,202.68/1,861,098,463.92 = 903,142,031.92/x - Step 3: Cross multiply
1,349,035,202.68x = 1,861,098,463.92 × 903,142,031.92 - Step 4: Simplify right side
1,349,035,202.68x = 1,680,836,248,307,899,648 - Step 5: Solve for x
x = 1,680,836,248,307,899,648/1,349,035,202.68 - Step 6: Final answer
x = 1,245,954,327.19
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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.