Finding the Fourth Proportional to 28,370,237.92, 39,153,340.38 and 15,982,763.74
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Solution
The fourth proportional to 28,370,237.92, 39,153,340.38 and 15,982,763.74 is: 22,057,572.82
Step by Step Solution
- Step 1: Write the proportion equation
28,370,237.92 : 39,153,340.38 = 15,982,763.74 : x - Step 2: Convert to fraction form
28,370,237.92/39,153,340.38 = 15,982,763.74/x - Step 3: Cross multiply
28,370,237.92x = 39,153,340.38 × 15,982,763.74 - Step 4: Simplify right side
28,370,237.92x = 625,778,588,925,341.88 - Step 5: Solve for x
x = 625,778,588,925,341.88/28,370,237.92 - Step 6: Final answer
x = 22,057,572.82
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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.