Finding the Fourth Proportional to 108,660,994.71, 149,938,562.47 and 73,455,400.18
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Solution
The fourth proportional to 108,660,994.71, 149,938,562.47 and 73,455,400.18 is: 101,359,251.66
Step by Step Solution
- Step 1: Write the proportion equation
108,660,994.71 : 149,938,562.47 = 73,455,400.18 : x - Step 2: Convert to fraction form
108,660,994.71/149,938,562.47 = 73,455,400.18/x - Step 3: Cross multiply
108,660,994.71x = 149,938,562.47 × 73,455,400.18 - Step 4: Simplify right side
108,660,994.71x = 11,013,797,108,089,294 - Step 5: Solve for x
x = 11,013,797,108,089,294/108,660,994.71 - Step 6: Final answer
x = 101,359,251.66
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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.