Finding the Fourth Proportional to 15,128,871,624, 20,877,624,903.84 and 8,354,976,826.56
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Solution
The fourth proportional to 15,128,871,624, 20,877,624,903.84 and 8,354,976,826.56 is: 11,529,747,663.96
Step by Step Solution
- Step 1: Write the proportion equation
15,128,871,624 : 20,877,624,903.84 = 8,354,976,826.56 : x - Step 2: Convert to fraction form
15,128,871,624/20,877,624,903.84 = 8,354,976,826.56/x - Step 3: Cross multiply
15,128,871,624x = 20,877,624,903.84 × 8,354,976,826.56 - Step 4: Simplify right side
15,128,871,624x = 174,432,072,265,195,159,552 - Step 5: Solve for x
x = 174,432,072,265,195,159,552/15,128,871,624 - Step 6: Final answer
x = 11,529,747,663.96
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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.