Finding the Fourth Proportional to 70,903,809.12, 97,927,969.11 and 47,658,579.78
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Solution
The fourth proportional to 70,903,809.12, 97,927,969.11 and 47,658,579.78 is: 65,823,091.69
Step by Step Solution
- Step 1: Write the proportion equation
70,903,809.12 : 97,927,969.11 = 47,658,579.78 : x - Step 2: Convert to fraction form
70,903,809.12/97,927,969.11 = 47,658,579.78/x - Step 3: Cross multiply
70,903,809.12x = 97,927,969.11 × 47,658,579.78 - Step 4: Simplify right side
70,903,809.12x = 4,667,107,928,522,311 - Step 5: Solve for x
x = 4,667,107,928,522,311/70,903,809.12 - Step 6: Final answer
x = 65,823,091.69
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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.