Finding the Fourth Proportional to 19,239,056.70, 28,834,090.65 and 7,866,656.70
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Solution
The fourth proportional to 19,239,056.70, 28,834,090.65 and 7,866,656.70 is: 11,789,969.54
Step by Step Solution
- Step 1: Write the proportion equation
19,239,056.70 : 28,834,090.65 = 7,866,656.70 : x - Step 2: Convert to fraction form
19,239,056.70/28,834,090.65 = 7,866,656.70/x - Step 3: Cross multiply
19,239,056.70x = 28,834,090.65 × 7,866,656.70 - Step 4: Simplify right side
19,239,056.70x = 226,827,892,400,229.84 - Step 5: Solve for x
x = 226,827,892,400,229.84/19,239,056.70 - Step 6: Final answer
x = 11,789,969.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.