Finding the Fourth Proportional to 4,742,257.51, 7,113,391.40 and 2,219,684.23
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Solution
The fourth proportional to 4,742,257.51, 7,113,391.40 and 2,219,684.23 is: 3,329,528.75
Step by Step Solution
- Step 1: Write the proportion equation
4,742,257.51 : 7,113,391.40 = 2,219,684.23 : x - Step 2: Convert to fraction form
4,742,257.51/7,113,391.40 = 2,219,684.23/x - Step 3: Cross multiply
4,742,257.51x = 7,113,391.40 × 2,219,684.23 - Step 4: Simplify right side
4,742,257.51x = 15,789,482,712,397.62 - Step 5: Solve for x
x = 15,789,482,712,397.62/4,742,257.51 - Step 6: Final answer
x = 3,329,528.75
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1.5x scale
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.