Finding the Fourth Proportional to 7,148,602.42, 9,865,137.40 and 3,885,424.84
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Solution
The fourth proportional to 7,148,602.42, 9,865,137.40 and 3,885,424.84 is: 5,361,922.18
Step by Step Solution
- Step 1: Write the proportion equation
7,148,602.42 : 9,865,137.40 = 3,885,424.84 : x - Step 2: Convert to fraction form
7,148,602.42/9,865,137.40 = 3,885,424.84/x - Step 3: Cross multiply
7,148,602.42x = 9,865,137.40 × 3,885,424.84 - Step 4: Simplify right side
7,148,602.42x = 38,330,249,903,973.02 - Step 5: Solve for x
x = 38,330,249,903,973.02/7,148,602.42 - Step 6: Final answer
x = 5,361,922.18
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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.