Finding the Fourth Proportional to 72,262,542.30, 108,357,946.65 and 26,202,572.70
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Solution
The fourth proportional to 72,262,542.30, 108,357,946.65 and 26,202,572.70 is: 39,290,853.66
Step by Step Solution
- Step 1: Write the proportion equation
72,262,542.30 : 108,357,946.65 = 26,202,572.70 : x - Step 2: Convert to fraction form
72,262,542.30/108,357,946.65 = 26,202,572.70/x - Step 3: Cross multiply
72,262,542.30x = 108,357,946.65 × 26,202,572.70 - Step 4: Simplify right side
72,262,542.30x = 2,839,256,974,719,346.50 - Step 5: Solve for x
x = 2,839,256,974,719,346.50/72,262,542.30 - Step 6: Final answer
x = 39,290,853.66
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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.