Finding the Fourth Proportional to 39,063,898.76, 53,903,225.40 and 21,418,157.68
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Solution
The fourth proportional to 39,063,898.76, 53,903,225.40 and 21,418,157.68 is: 29,554,340.91
Step by Step Solution
- Step 1: Write the proportion equation
39,063,898.76 : 53,903,225.40 = 21,418,157.68 : x - Step 2: Convert to fraction form
39,063,898.76/53,903,225.40 = 21,418,157.68/x - Step 3: Cross multiply
39,063,898.76x = 53,903,225.40 × 21,418,157.68 - Step 4: Simplify right side
39,063,898.76x = 1,154,507,781,077,781 - Step 5: Solve for x
x = 1,154,507,781,077,781/39,063,898.76 - Step 6: Final answer
x = 29,554,340.91
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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.