Finding the Fourth Proportional to 91,135,986.36, 125,785,588.68 and 69,070,999.11
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Solution
The fourth proportional to 91,135,986.36, 125,785,588.68 and 69,070,999.11 is: 95,331,565.84
Step by Step Solution
- Step 1: Write the proportion equation
91,135,986.36 : 125,785,588.68 = 69,070,999.11 : x - Step 2: Convert to fraction form
91,135,986.36/125,785,588.68 = 69,070,999.11/x - Step 3: Cross multiply
91,135,986.36x = 125,785,588.68 × 69,070,999.11 - Step 4: Simplify right side
91,135,986.36x = 8,688,136,283,767,106 - Step 5: Solve for x
x = 8,688,136,283,767,106/91,135,986.36 - Step 6: Final answer
x = 95,331,565.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.