Finding the Fourth Proportional to 121,896,655.97, 168,209,103.51 and 66,896,055.41
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Solution
The fourth proportional to 121,896,655.97, 168,209,103.51 and 66,896,055.41 is: 92,312,011.51
Step by Step Solution
- Step 1: Write the proportion equation
121,896,655.97 : 168,209,103.51 = 66,896,055.41 : x - Step 2: Convert to fraction form
121,896,655.97/168,209,103.51 = 66,896,055.41/x - Step 3: Cross multiply
121,896,655.97x = 168,209,103.51 × 66,896,055.41 - Step 4: Simplify right side
121,896,655.97x = 11,252,525,508,030,340 - Step 5: Solve for x
x = 11,252,525,508,030,340/121,896,655.97 - Step 6: Final answer
x = 92,312,011.51
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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.